Cracking the AP U.S. History Exam, 2020 Edition, provides students with an in-depth review of key terms and concepts organized by time period, including the seventeenth and eighteenth centuries, the creation of government and early democracy, the Civil War and Reconstruction, the Machine Age, the early twentieth century, post-World War America, and more. It also includes winning strategies to help students crack the multiple-choice section and detailed coverage of both essay types--DBQ (document-based question) and free-response.