Barron’s AP Calculus is an effective, comprehensive workbook that prepares students for the Calculus AB and BC Advanced Placement exams. The workbook includes a diagnostic exam for both tests, 12 chapters of topical review and practice sets plus 3 full-length practice exams for each test. Length of the chapters varies per topic but average approximately 15 pages each, which include definitions of key terms plus plenty of examples of with step-wise explanations. They clearly indicate which material is additional for the BC exam. Each section ends with practice exercises of approximately 50+ questions with answer key and understandable explanations for a student comfortably performing in class. The full-length practice exams resemble the actual tests and the test answer keys include complete explanations as well. The appendix is a comprehensive reference of theorems and formulas. A book purchase includes a CD-ROM and online access for two additional AB and BC exams with automatic scoring. This is a great choice for students looking for extra AP Calculus problems or test-taking practice because it provides plenty of authentic practice and every answer in the book is broken down and explained in understandable language.