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The author states in the introduction that this book is not meant for self-study and that it is expected that a knowledgeable teacher is available to answer any questions -- and, presumably, to check the answers to the exercises. This book is beautifully laid-out, clearly written, and is a joy to study -- right up until you complete an exercise and want to check your answers and find that the only way to do it is just go over and exercise repeatedly until you are sure your answers are correct. There is no other way to know. It is still a useful and productive book for self-study, definitely 5-star material, but I'm knocking off a star because of the lack of an answer key.
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