Updated to reflect the most recent ACT Assessment tests, this manual provides a combination of in-depth subject reviews and practice tests to prepare college-bound students for success on the ACT. Subject reviews cover English, Math, Reading, and Science, as well as an essay writing guide for students who take the optional, half-hour-long Writing Test. A diagnostic test and three full-length practice ACT exams are also included with all questions answered and explained, plus additional practice exercises in all test areas, study tips, and test-taking strategies.