With an A-Z format, the Encyclopedia of Biometricsprovides easy access to relevant information on all aspects of biometrics for those seeking entry into this broad field. The encyclopedia is composed of approximately 250 overview entries and 800 definitional entries.

Each entry includes a definition, key words, list of synonyms, list of related entries, illustration(s), applications, and a bibliography. Most entries include useful literature references, providing readers with a portal to more detailed information. The style of the entries is expository and tutorial, making the encyclopedia a practical resource for experts in the field and professionals in other fields.