Now fully aligned to the redesigned course and exam, the 3rd Edition of Skillbook features 37 chapters of practice and application exercises that will provide students with a rock-solid foundation of the essential Historical Thinking Skills at the heart of the AP* U.S. History curriculum. Carefully sequenced essay skill exercises help students dissect a prompt, make a writing plan, develop a thesis, and use appropriate support for their written argument. Now with detailed answers and explanations for a complete independent study experience!.