This book describes the dying process, and includes practical advice. Chagdud Tulku Rinpoche wished that this book would provide brief but profound instructions on preparing for death. Because it is short and accessible, it has been read by a wide range of people, many of whom have commented that it is a book they feel comfortable giving to their elderly parents or to friends who are dealing with life-threatening illnesses.
Concise yet complete enough, assuming that it is, as intended, serving as a refresher for direct instruction previously received. And electronic copy is handy for its searchability, even though the text is fairly short.