Dr. Theodore P.C. Gabriel is emeritus lecturer and Honorary Research Fellow in theology and religious studies at the University of Gloucestershire, England.
Education: University of Madras, Chennai, India, B.A.; University of Kerala, India, B.Ed.; Shivaji University, Kolhapur, India, M.A.; University of Aberdeen, Scotland, M.Litt., Ph.D.
Very clearly identifies the differences between most of the major world religions. It doesn't go into great detail, but for those of us who are interested in simply broadening horizons vs. becoming encyclopedias, this book is perfect.
Small, concise, helpful introductions to the different isms and schisms in religion. Great for quick reference and for beginner's basic understandings.