Ancient wisdom transmuted through the modern, clear perception of Evans-Wentz and delivered in a highly readable and beautifully designed book.
Cannot go wrong here.
Anyone who is interested in the six yogas of Naropa should read this book. It is skillfully translated from real sources. Some may say that the info is incomplete... but then, there is no single book that provides complete information regarding the practices---which is one of the reasons why looking for a guru who truly in the lineage and received initiations and oral teachings from previous practitioners is essential.
This book is a good look at esoteric Buddhism. One of my favorites.