42 books • 2 series
Book #1: AP* World History
Book #36: AP* Psychology Student Workbook for use with Myers' Psychology for the AP Course+ 3rd Edition (2018)
Book #38: AP* European History student workbook for use with McKay's A History of Western Society+ 12th Edition for the AP* Course
Book #39: Warm-ups, Online Activities & Homework Shorts for use with Strayer's Ways of the World+ 4th edition for the AP* Course