This new book by IV Press in 2002, authored by Irving Hexham, gives up to date descriptions of groups, individuals and ideas clearly and concisely defined.

"This book is designed to be an indespensable companion for students of religion and a fascinating guide for curious and perplexed observers of the religious scene. Among its approximately 450 definitions are specific groups from the Aetherius Society to the Zion Christian Church; practices, from the Alexander technique to yoga; UFO religio, from alien abductions to Unariun Academy of Science; symbols, from the ankh to yin-yang; religious texts, from the Apocryphal New Testament to the Vinaya-Pitaka and religious leaders, from George Adamski to Rabbi Zalman."

See IVP website for more information: http://www.ivpress.com