- v. 1. A-C
- v. 2. D-J
- v. 3. K-Q
- v. 4. R-Z.
Presenting a short biography of each writer, an exposition and analysis of his or her doctrines and ideas, a bibliography of writings, and suggestions for further reading, this volume includes both academic and non-academic philosophers, and a large number of female and minority thinkers whose work has been neglected. The most valuable feature of this dictionary is its coverage of less well-known writers, including presently obscure thinkers.