The compendium of practice tests for the more than 2 million students who take the ACT The ACT is America"s fastest-growing college entrance exam and is now accepted by virtually every college and university in the country. Among 2005 high school graduates nationwide, more than 40 percent have taken the ACT. McGraw-Hill"s 10 ACT Practice Tests is a first-of-its-kind book of intensive test-prep exams, delivering complete preparation for every section of the exam.