The leading independent voice in test prep brings you the most effective ACT study guide For more than 30 years, Dr. Gary Gruber has been the leading authority on standardized testing and test preparation. His famous Gruber Method has assisted thousands of students in dramatically boosting their test-taking confidence and standardized test scores. Gruber's Complete ACT Guide guides students toward a personal study plan that shows them their strengths and weaknesses, evaluating not just the answers the students choose, but why they choose them. Featuring three full-length practice tests, targeted reviews, and proven strategies, Gruber has all the tools students need to improve their test scores.