This book could have had the sub-title 'A practical guide to the Initiation'. Berzin manages to convey the essence of the Kalachakra tantra, the vows, committments, and the initiation ceremony in day-to-day language, which makes the book absolutely essential for the serious first-time initiate, and a 'must-have' for just about everybody else interested in the Kalachakra tantra. Also for people who do not intend to take the initiation, this book appears quite suitable to remove misconceptions about tantra and may well inspire some to take it.