An authoritative, if somewhat dry, presentation of the Mahayana Buddhist tradition from a Tibetan perspective. I have instigated the use of this book in a study group setting, in which people agreed to read a particular chapter and topic ahead of time. It was very useful in giving people an opportunity to bring their understanding and misunderstandings to the surface, to be clarified (or at least narrowed!) by discussion with others.
This is an excellent book presenting the stages of the Mahayana path to all those interested in Buddhism. Written in the 1100's by Gampopa, a great Kagyu scholar, it is invaluable to all beginners and especially to those on the path. This book never gets old, and you can always use it as you proceed on the path. A wonderful achievement in spiritual literature, and a great gift to the English reader who does not have the ability to read the original Tibetan text.