This book is by far my favorite book discussing the ideas of quantum physics. It deals particularly with the effects of black holes (obviously), but in doing so, it transmits ideas that are useful for other topics as well. I also find it attractive in that Susskind added in his own emotions to the book instead of making it a dry read (e.g. the chapter "Ahab in Cambridge").
This book is highly recommended to those who are interested in the subject of: string theory, black holes, holographic principle, quantum mechanics, or Susskind himself.