This book delivers what the title says. The practices in this book are moderately sophistocated with the exception of a basic practice given to increase lucid dreaming which was to throughout your day to stop what you're doing and "realize" that this (your physical experience) is all just a dream. I read the same exercise in Osho's "Book of Secrets".
Another important point is that one needs to review the day before sleep to help remove or soften any karmic impressions received during the day. With these impressions softened or removed one should be freed from base karmic dreams and have more of the desired type of dreams.
I found the most important information contained in the last couple of sections of the book. Tenzin Wangyal elaborates on the end result and aim of the practices which is the constant abidement in rigpa. He writes as one who know this state well and not just one who's read about it.
After reading Sogyal Rinpoche's "Tibetan Book of Living and Dying", I was intrigued by the practice of "Dream Yoga", which, although mentioned and discussed several times in Sogyal's book, was never covered in any depth. "Living and Dying" didn't include any instructions in the practice of this exercise either, so I decided to look elsewhere. While glancing through the Eastern Religion section of a local bookstore, I stumbled upon this fine little volume.
Wangyal Rinpoche delivers more than a guide to the practice of Dream Yoga- he delivers a guide to a complete nondual practice. The book includes meditation instructions, Guru Yoga and Dakini practices, breathing instructions, a guide to basic Tibetan bioenergetics, a little history of the Bon tradition, a brief introduction to Tantra and Dzogchen, and even a glossary filled with Tibetan and Sanskrit terms used throughout the book. There is enough here to begin a spiritual practice beyond dream yoga.
To the seeker looking for a guide to Tibetan mysticism, look no further- "The Tibetan Yogas of Dream and Sleep" is the perfect introduction.