I disagree with both of the previous reviewers. As someone involved in self-study in preparation for certification, I find this text extraordinarily helpful. The chapters are short and manageable, and the end-of-chapter review material is thorough enough that I can leave a chapter and go on to the next confident that I've retained all that is necessary. And for the five or six bucks I paid for a sixty-chapter textbook, I can't complain.
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