
An e-reader, also called an e reader or e device, is a
mobile electronic device that is designed primarily for the purpose of reading digital
e-book
An ebook (short for electronic book), also spelled as e-book or eBook, is a book publication made available in electronic form, consisting of text, images, or both, readable on the flat-panel display of computers or other electronic devices. Al ...
s and
periodicals
Periodical literature (singularly called a periodical publication or simply a periodical) consists of Publication, published works that appear in new releases on a regular schedule (''issues'' or ''numbers'', often numerically divided into annu ...
.
Any device that can display text on a screen may act as an e-reader; however, specialized e-reader devices may optimize portability, readability, and battery life for this purpose. Their main advantage over printed books is portability: an e-reader is capable of holding thousands of books while weighing less than one. Another advantage is the convenience provided by add-on features.
Overview
An e-reader is a device designed as a convenient way to read e-books. It is similar in
form factor to a
tablet computer
A tablet computer, commonly shortened to tablet, is a mobile device, typically with a mobile operating system and touchscreen display processing circuitry, and a rechargeable battery in a single, thin and flat package. Tablets, being computers ...
, but often features
electronic paper
Electronic paper or intelligent paper, is a display device that reflects ambient light, mimicking the appearance of ordinary ink on paper – unlike conventional flat-panel displays which need additional energy to emit their own light. This may ...
("e-ink") rather than an LCD screen. This yields much longer battery life — the battery can last for several weeks — and better readability, similar to that of paper even in sunlight. Drawbacks of this kind of display include a slow refresh rate and (usually) a grayscale-only display, which makes it unsuitable for sophisticated interactive applications such as those found on tablets. This may be perceived as an advantage, however, as the user may more easily focus on reading. The Sony Librie, released in 2004 and the precursor to the
Sony Reader, was the first e-reader to use electronic paper.
Many e-readers can use the
internet
The Internet (or internet) is the Global network, global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) to communicate between networks and devices. It is a internetworking, network of networks ...
through
Wi-Fi
Wi-Fi () is a family of wireless network protocols based on the IEEE 802.11 family of standards, which are commonly used for Wireless LAN, local area networking of devices and Internet access, allowing nearby digital devices to exchange data by ...
and the built-in software can provide a link to a digital
Open Publication Distribution System (OPDS) library or an e-book retailer, allowing the user to buy, borrow, and receive digital e-books. An e-reader may also download e-books from a computer or read them from a
memory card
A memory card is an electronic data storage device used for storing digital information, typically using flash memory. These are commonly used in digital portable electronic devices, such as digital cameras as well as in many early games conso ...
. However, the use of memory cards is decreasing as most of the 2010s era e-readers lack a card slot.
History
An idea similar to that of an e-reader is described in a 1930 manifesto written by
Bob Brown
Robert James Brown (born 27 December 1944) is an Australian former politician, medical doctor and environmentalist. He was a Australian Senate, senator and the parliamentary leader of the Australian Greens. Brown was elected to the Australian ...
titled ''The Readies'', which describes "a simple reading machine which I can carry or move around, attach to any old electric light plug and read hundred-thousand-word novels in 10 minutes". His hypothetical machine would use a
microfilm
A microform is a scaled-down reproduction of a document, typically either photographic film or paper, made for the purposes of transmission, storage, reading, and printing. Microform images are commonly reduced to about 4% or of the original d ...
-style ribbon of miniaturized text which could be scrolled past a magnifying glass, and would allow the reader to adjust the type size. He envisioned that eventually words could be "recorded directly on the palpitating ether".
The establishment of the
E Ink Corporation in 1997 led to the development of
electronic paper
Electronic paper or intelligent paper, is a display device that reflects ambient light, mimicking the appearance of ordinary ink on paper – unlike conventional flat-panel displays which need additional energy to emit their own light. This may ...
, a technology which allows a display screen to reflect light like ordinary paper without the need for a backlight. Among the first commercial e-readers were Sony's
Data Discman (which was using
Mini CD
Mini CDs, or pocket CDs, are CDs with a smaller diameter and one-third the storage capacity of a standard 120 mm disc.
Formats
Amongst the various formats are the
* Mini CD single, a small disc. The format is mainly used for audio CD s ...
s with special caddies) and the
Rocket eBook.
[MobileRead Wiki – Rocket eBook](_blank)
. Wiki.mobileread.com (2011-11-20). Retrieved on 2012-04-12. Several others were introduced around 1998, but did not gain widespread acceptance. Electronic paper was incorporated first into the
Sony Librie that was released in 2004 and
Sony Reader in 2006, followed by the
Amazon Kindle
Amazon Kindle is a series of e-readers designed and marketed by Amazon. Amazon Kindle devices enable users to browse, buy, download, and read e-books, newspapers, magazines, Audible audiobooks, and other digital media via wireless networking ...
, a device which, upon its release in 2007, sold out within five and a half hours.
The Kindle includes access to the
Kindle Store
The Kindle Store is an online e-book e-commerce store operated by Amazon as part of its retail website and can be accessed from any Amazon Kindle, Fire tablet, or Kindle mobile app. At the launch of the Kindle in November 2007, the store had ...
for e-book sales and delivery.
In 2009, new marketing models for e-books were being developed and a new generation of reading hardware was produced. E-books (as opposed to e-readers) had yet to achieve global distribution. In the United States, the Amazon Kindle model and
Sony
is a Japanese multinational conglomerate (company), conglomerate headquartered at Sony City in Minato, Tokyo, Japan. The Sony Group encompasses various businesses, including Sony Corporation (electronics), Sony Semiconductor Solutions (i ...
's
PRS-500 were the dominant e-reading devices. By March 2010, some reported that the
Barnes & Noble Nook
The Barnes & Noble Nook (styled nook or NOOK) is a brand of e-readers developed by United States, American book retailer Barnes & Noble, based on the Android (operating system), Android platform. The original device was announced in the U.S. i ...
may have been selling more units than the Kindle in the US. The
Ectaco jetBook Color was the first color e-reader on the market, but its muted colors were criticized. Since 2021, color E-ink readers have been introduced into the market.
Research released in March 2011 indicated that e-books and e-readers were more popular with the older generation than the younger generation in the UK. The survey, carried out by Silver Poll, found that around 6% of people over 55 owned an e-reader, compared with just 5% of 18- to 24-year-olds. According to an
IDC study from March 2011, sales for all e-readers worldwide rose to 12.8 million in 2010; 48% of them were
Amazon Kindle
Amazon Kindle is a series of e-readers designed and marketed by Amazon. Amazon Kindle devices enable users to browse, buy, download, and read e-books, newspapers, magazines, Audible audiobooks, and other digital media via wireless networking ...
s, followed by
Barnes & Noble Nook
The Barnes & Noble Nook (styled nook or NOOK) is a brand of e-readers developed by United States, American book retailer Barnes & Noble, based on the Android (operating system), Android platform. The original device was announced in the U.S. i ...
s,
Pandigital, and
Sony Readers (about 800,000 units for 2010).
On January 27, 2010
Apple Inc.
Apple Inc. is an American multinational corporation and technology company headquartered in Cupertino, California, in Silicon Valley. It is best known for its consumer electronics, software, and services. Founded in 1976 as Apple Comput ...
launched a multi-function
tablet computer
A tablet computer, commonly shortened to tablet, is a mobile device, typically with a mobile operating system and touchscreen display processing circuitry, and a rechargeable battery in a single, thin and flat package. Tablets, being computers ...
called the
iPad
The iPad is a brand of tablet computers developed and marketed by Apple Inc., Apple that run the company's mobile operating systems iOS and later iPadOS. The IPad (1st generation), first-generation iPad was introduced on January 27, 2010. ...
and announced agreements with five of the six largest publishers that would allow Apple to distribute e-books. The iPad includes a built-in app for e-book reading called
iBooks and had the
iBookstore
Apple Books (known as iBooks prior to iOS 12 and macOS 10.14 Mojave) is an e-book reading and store application by Apple Inc. for its iOS, iPadOS and macOS operating systems and List of iOS devices, devices. It was announced, under the name iBo ...
for content sales and delivery. The iPad, the first commercially profitable tablet, was followed in 2011 by the release of the first
Android-based tablets as well as LCD tablet versions of the Nook and Kindle. Unlike previous dedicated e-readers, tablet computers are multi-functional, utilize LCD touchscreen displays, and are more agnostic to e-book vendor apps, allowing for the installation of multiple e-book reading apps. Many Android tablets accept external media and allow uploading files directly onto the tablet's file system without resorting to online stores or cloud services. Many tablet-based and smartphone-based readers are capable of displaying PDF and DJVU files, which few of the dedicated e-book readers can handle. This opens a possibility to read publications originally published on paper and later scanned into a digital format. While these files may not be considered e-books in their strict sense, they preserve the original look of printed editions. The growth in general-purpose tablet use allowed for further growth in the popularity of e-books in the 2010s.
In 2012, there was a 26% decline in e-reader sales worldwide from a maximum of 23.2 million in 2011. The reason was given for this "alarmingly precipitous decline" was the rise of more general-purpose tablets that provided e-book reading apps along with many other abilities in a similar form factor. In 2013, ABI Research claimed that the decline in the e-reader market was due to the aging of the customer base. In 2014, the industry reported e-reader sales worldwide to be around 12 million, with only
Amazon.com
Amazon.com, Inc., doing business as Amazon, is an American multinational technology company engaged in e-commerce, cloud computing, online advertising, digital streaming, and artificial intelligence. Founded in 1994 by Jeff Bezos in Bellevu ...
and
Kobo Inc.
Rakuten Kobo Inc., or simply Kobo, is a Canadian company that sells ebooks, audiobooks, e-readers and formerly tablet computers. It is headquartered in Toronto, Ontario, Canada and is a subsidiary of the Japanese e-commerce conglomerate Rakute ...
distributing e-readers globally and various regional distribution by
Barnes & Noble
Barnes & Noble Booksellers is an American bookseller with the largest number of retail outlets in the United States. The company operates approximately 600 retail stores across the United States.
Barnes & Noble operates mainly through its B ...
(US/UK), Tolino (Germany), Icarus (Netherlands),
PocketBook International (Eastern Europe and Russia) and Onyx
Boox (China and Vietnam). At the end of 2015, eMarketer estimated that there were 83.4 million e-reader users in the US, with the number predicted to grow by 3.5% in 2016. In late 2014,
PricewaterhouseCoopers
PricewaterhouseCoopers, also known as PwC, is a multinational professional services network based in London, United Kingdom.
It is the second-largest professional services network in the world and is one of the Big Four accounting firms, alon ...
predicted that by 2018 e-books would make up over 50% of total consumer publishing revenue in the U.S. and UK, while at that time, e-books were over 30% of the share of the revenue.
Until late 2013, the use of an e-reader was not allowed on airplanes during takeoff and landing. In November 2013, the FAA allowed use of e-readers on airplanes at all times if set to
Airplane Mode. European authorities followed this guidance the following month.
E-reader applications

Many of the major book retailers and third-party developers offer e-reader applications for desktops, tablets, and mobile devices, to allow the reading of e-books and other documents independent of dedicated e-book devices. E-reader applications are available for computers running
Linux
Linux ( ) is a family of open source Unix-like operating systems based on the Linux kernel, an kernel (operating system), operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically package manager, pac ...
,
MacOS
macOS, previously OS X and originally Mac OS X, is a Unix, Unix-based operating system developed and marketed by Apple Inc., Apple since 2001. It is the current operating system for Apple's Mac (computer), Mac computers. With ...
, and
Windows
Windows is a Product lining, product line of Proprietary software, proprietary graphical user interface, graphical operating systems developed and marketed by Microsoft. It is grouped into families and subfamilies that cater to particular sec ...
, as well as for smartphones running
Android,
iOS
Ios, Io or Nio (, ; ; locally Nios, Νιός) is a Greek island in the Cyclades group in the Aegean Sea. Ios is a hilly island with cliffs down to the sea on most sides. It is situated halfway between Naxos and Santorini. It is about long an ...
and
Windows Phone
Windows Phone (WP) is a discontinued mobile operating system developed by Microsoft Mobile for smartphones as the replacement successor to Windows Mobile and Zune. Windows Phone featured a new user interface derived from the Metro design languag ...
.
Impact
The introduction of e-readers brought substantial changes to the publishing industry, also awakening fears and predictions about the possible disappearance of books and print periodicals.
Criticism
Disadvantages of epaper display
The graphical design of ebooks underlies the format and technical limits of e-readers because until recently the vast majority of E-ink readers did not support color displays and had a limited resolution and size.
As of 2024, however, colour e-readers aren't that rare and there are many colour devices in the market like
BOOX Go Color 7 and
Kobo Libra Colour which both utilize
Kaleido 3 epaper screens supporting up to 4096 colours. The reading experience on epaper displays which are not illuminated depends on the environment lighting condition.
Closed ecosystems for retrieving ebooks and lack of freedom
E-readers are usually designed to only offer access to the online shop of one provider. This structure is referred to as
(digital) ecosystem and helps smaller companies (e.g. Kibano Digireader) to compete against multinational companies (like
Amazon
Amazon most often refers to:
* Amazon River, in South America
* Amazon rainforest, a rainforest covering most of the Amazon basin
* Amazon (company), an American multinational technology company
* Amazons, a tribe of female warriors in Greek myth ...
,
Apple
An apple is a round, edible fruit produced by an apple tree (''Malus'' spp.). Fruit trees of the orchard or domestic apple (''Malus domestica''), the most widely grown in the genus, are agriculture, cultivated worldwide. The tree originated ...
, etc.).
On the other hand, customers only have the possibility of purchasing books from a limited selection of ebooks in the online shop (accessible via the e-reader) and therefore do not have the possibility of purchasing e-books from the open market.
Because of the use of ecosystems, companies are not forced to compete against each other and therefore the cost of e-books do not decrease. With only the option of using an online shop, the social interaction of buying or borrowing a book disappears. There are, however, notable exceptions such as
Onyx Boox
Onyx Boox (stylized as BOOX) is a brand of e-book reader produced by Onyx International Inc, based in China. Like most e-book readers, the Boox uses electronic paper technology.
Devices
i63ML Newton
The Onyx Boox i63ML Newton (I63MLP_HD) de ...
and
Meebook devices which run an open
Android system. Then the users can download and read ebooks from whichever source they prefer either by installing a bookstore app(e.g.
Kindle,
Kobo
Kobo may refer to:
Places
* Kobo (woreda), a district in Ethiopia
** Kobo, Ethiopia, a town
* Kōbo Dam, Hiroshima Prefecture, Japan
* Mount Kōbō, Kanagawa Prefecture, Japan
People
* Kobo (name)
* Kōbō-Daishi, a posthumous name of Kūka ...
and the like), use a web browser or directly download the ebook file. There are also ebook readers with an open
Linux
Linux ( ) is a family of open source Unix-like operating systems based on the Linux kernel, an kernel (operating system), operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically package manager, pac ...
system. A notable example is
PineNote from
Pine64
Pine Store Limited, Trade_name, doing business as Pine64 (styled as PINE64), is a Hong Kong-based organization that designs, manufactures, and sells single-board computers, notebook computers, as well as smartwatch/smartphones. Its name was insp ...
. However, the software ecosystem of these ebook readers usually aren't mature as mainstream options in the market.
In the
EU, media products, including paper books, often have a tax reduction. Therefore, the
VAT
A value-added tax (VAT or goods and services tax (GST), general consumption tax (GCT)) is a consumption tax that is levied on the value added at each stage of a product's production and distribution. VAT is similar to, and is often compared wi ...
for conventional books was often lower than that of e-books. In legal terms, e-books were considered a service since it was regarded as a temporary lease of the product. Therefore, ebook prices were often similar to paper book prices, even if the production of ebooks has a lower cost.
In October 2018, the EU allowed its member countries to charge the same VAT for ebooks as for paper books.
Richard Stallman
Richard Matthew Stallman ( ; born March 16, 1953), also known by his initials, rms, is an American free software movement activist and programmer. He campaigns for software to be distributed in such a manner that its users have the freedom to ...
has expressed concern about the perceived loss of freedom or privacy that comes with e-readers, namely the inability to read whatever a reader prefers without the possibility of being tracked.
Positive aspects
E-readers can hold thousands of books limited only by their memory and use the same physical space as a conventional book. Most
E-ink displays are not back-illuminated and therefore seem to cause no more eye strain than a traditional book and less eye strain than
LCD screens, with a longer battery life. Features such as the ability to adjust font size and spacing can help people who have difficulty reading or
dyslexia
Dyslexia (), previously known as word blindness, is a learning disability that affects either reading or writing. Different people are affected to different degrees. Problems may include difficulties in spelling words, reading quickly, wri ...
. Some e-readers link to definitions or translations of key words.
Amazon
Amazon most often refers to:
* Amazon River, in South America
* Amazon rainforest, a rainforest covering most of the Amazon basin
* Amazon (company), an American multinational technology company
* Amazons, a tribe of female warriors in Greek myth ...
notes that 85% of its e-reader users look up a word while reading.
E-readers can instantly download content from supported public libraries by using apps like
OverDrive.
Popular e-readers
*
Amazon
Amazon most often refers to:
* Amazon River, in South America
* Amazon rainforest, a rainforest covering most of the Amazon basin
* Amazon (company), an American multinational technology company
* Amazons, a tribe of female warriors in Greek myth ...
(Global):
Kindle,
Kindle Paperwhite
Amazon Kindle is a series of e-readers designed and marketed by Amazon (company), Amazon. Amazon Kindle devices enable users to browse, buy, download, and read e-books, newspapers, magazines, Audible audiobooks, and other digital media via wi ...
,
Kindle Voyage,
Kindle Oasis,
Kindle Oasis 2,
Kindle Scribe
*
Barnes & Noble
Barnes & Noble Booksellers is an American bookseller with the largest number of retail outlets in the United States. The company operates approximately 600 retail stores across the United States.
Barnes & Noble operates mainly through its B ...
(US/UK):
Nook,
Nook GlowLight,
Nook GlowLight Plus
*
Bookeen
Bookeen is a French company dealing with e-books and consumer electronics.
History
In 2003 after the failure of Cytale (the first European company to make an ebook reader) two former engineers of Cytale, Laurent Picard and Michaël Dahan, bough ...
(France): Cybook Opus, Cybook Orizon, Cybook Odyssey, Cybook Odyssey HD FrontLight
*
Kobo
Kobo may refer to:
Places
* Kobo (woreda), a district in Ethiopia
** Kobo, Ethiopia, a town
* Kōbo Dam, Hiroshima Prefecture, Japan
* Mount Kōbō, Kanagawa Prefecture, Japan
People
* Kobo (name)
* Kōbō-Daishi, a posthumous name of Kūka ...
(Global):
Kobo Touch,
Kobo Glo,
Kobo Mini,
Kobo Aura
The Kobo Aura is the fifth generation of E-book readers designed and marketed by Kobo Inc. It was revealed 27 August 2013 at Kobo's Beyond the Book Event in New York City, along with three new Kobo Arc devices. Available for pre-order the same ...
,
Kobo Aura HD
*
Onyx Boox
Onyx Boox (stylized as BOOX) is a brand of e-book reader produced by Onyx International Inc, based in China. Like most e-book readers, the Boox uses electronic paper technology.
Devices
i63ML Newton
The Onyx Boox i63ML Newton (I63MLP_HD) de ...
(Europe, Russia, China and Vietnam): Onyx Boox Max2, Onyx Boox Note
*
PocketBook (Europe and Russia): PocketBook Touch, PocketBook Mini, PocketBook Touch Lux, PocketBook Color Lux, PocketBook Aqua
* Tolino (Germany): Tolino Shine, Tolino Shine 2 HD, Tolino Vision, Tolino Vision 2
Alternative e-readers devices or platform
*
Apple
An apple is a round, edible fruit produced by an apple tree (''Malus'' spp.). Fruit trees of the orchard or domestic apple (''Malus domestica''), the most widely grown in the genus, are agriculture, cultivated worldwide. The tree originated ...
:
iPad
The iPad is a brand of tablet computers developed and marketed by Apple Inc., Apple that run the company's mobile operating systems iOS and later iPadOS. The IPad (1st generation), first-generation iPad was introduced on January 27, 2010. ...
and
iPad Mini
The iPad Mini (branded and marketed as iPad mini) is a line of small tablet computers developed and marketed by Apple Inc. It is a sub-series of the iPad line of tablets, with screen sizes of 7.9 inches and 8.3 inches. The first-generation ...
*
Amazon
Amazon most often refers to:
* Amazon River, in South America
* Amazon rainforest, a rainforest covering most of the Amazon basin
* Amazon (company), an American multinational technology company
* Amazons, a tribe of female warriors in Greek myth ...
:
Fire Tablet
''Lawh-i-Qad-Ihtaraqa'l-Mukhlisun'', better known as the ''Fire Tablet'', is a tablet written in Arabic by Baháʼu'lláh, founder of the Baháʼí Faith, in Akká in 1871. Baháʼu'lláh wrote the tablet in response to questions by a Bahá� ...
*
Android based tablet
See also
*
Comparison of e-readers
An e-reader, also known as an e-book reader, is a mobile device, portable electronic device that is designed primarily for the purpose of reading e-books and Periodical literature, periodicals. E-readers have a similar form factor (design), form f ...
*
Supporting platforms for e-book formats
*
Open Publication Distribution System
References
External links
*
*
{{Authority control
Dedicated ebook devices
Ebooks
Electronic paper technology