The second edition has been revised to more closely align with the most current 2020 CED with updated content and a topical organization. It prepares students for the AP exam by exploring the four chronological periods and nine units covered by the course. The text includes primary sources, document-based questions (DBQs), features that provide guided practice in developing argumentation skills and expressing historical understanding, and a complete practice exam. New features include questions added to the Historical Perspectives feature to better assist students in processing content and multiple-choice and short-answer questions aligned to the College Board's revised format and rigor for question types. A Teacher Resource is available only to teachers and with a school purchase order by contacting Customer Experience.