The Gale Encyclopedia of Psychology, Second Edition includes over 650 entries on people and subjects important to the study of psychology. This number represents one-third more entries than the first edition. The book has been designed so the reader can easily find and access the information needed.

• Entries are alphabetically arranged.
• Length of entries ranges from brief explanations of a concept in one or two paragraphs to longer, more detailed entries on more complex topics. Almost 65% of the entries are entirely new or updated from the first edition.
• A brief definition of the entry term appears between the entry title and the full text of the entry.
• Over 175 photos, illustrations, and tables accompany the text and enhance the reader's understanding of the subject covered.
• Bolded cross-references direct the reader to entries on terms mentioned in the text of other entries.
• See also references at the end of entries point the reader to related entries.
• Further Reading and Further Information sections follow entries, directing the reader to other sources of information on the topic.
• A new and improved glossary of over 350 essential terms is included to help the reader understand key concepts.
• An updated appendix lists psychological organizations that the reader may contact for further inquiries.
• An updated and expanded general subject index points the reader to concepts and people covered in the encyclopedia.