The Encyclopedia discusses Eastern and Western philosophy and deals with ancient, medieval, and modern philosophy. The work contains nearly 1,500 lengthy articles of value for the specialist as well as for the beginner. Hammond, N.G.L. and H.H. Scullard, eds. Oxford Classical Dictionary. A scholarly dictionary covering biography, literature, mythology, philosophy, religion, science, geography, etc.
Most articles are brief.
Bibliographies appended to the articles are usually limited to a few of the best works on the topic, are more up to date than those in Harper's Dictionary, and include more English language titles. A.R. A Dictionary of Philosophy. An excellent source for explaining philosophical concepts. Epistemology and logic occupy far more space than ethics, politics or aesthetics. Some of the more extensive definitions include bibliographical references.