From Wikipedia, the free encyclopediaJump to: navigation, searchThis article is about the type of reference work. For other uses, see Encyclopedia (disambiguation).Brockhaus Enzyklopädie in 1902An encyclopedia (also spelled encyclopaedia or encyclopædia) is a type of reference work, a compendium holding a summary of information from either all branches of knowledge or a particular branch of knowledge.[1]Encyclopedias are divided into articles or entries, which are usually accessed alphabetically by article name.[2] Encyclopedia entries are longer...