We spend one third of our lives asleep and much of that time dreaming. This book is all about dreams: not only how to interpret them but also about their biology. Questions such as why we dream, what happens if we don't or can't dream, and what animals dream are examined. The author also looks at the different way dreams are interpreted by the various therapeutic schools as well as going into great detail about Jungian dream interpretation while concluding that we can learn from all of them.