''Helios'', more fully the ''Helios New Encyclopedic Dictionary'' ( el, Νεώτερο Εγκυκλοπαιδικό Λεξικό Ηλίου or: Νεώτερον Εγκυκλοπαιδικόν Λεξικόν Ήλιος), is a

general knowledge General knowledge is information that has been accumulated over time through various mediums and sources. It excludes specialized learning that can only be obtained with extensive training and information confined to a single medium. General kn ...

Greek

encyclopaedia An encyclopedia (American English) or encyclopædia (British English) is a reference work or compendium providing summaries of knowledge either general or special to a particular field or discipline. Encyclopedias are divided into articles ...

. Its publication commenced in 1945 while its second edition was completed in 1960, comprising 18 volumes.

See also