Roger Freedman & Philip R. Kesten 
College Physics for the AP(R) Physics 1 Course [EPUB ebook] 

Author Gay Stewart is well known and respected in the AP and Physics Education communities. It is the first text to integrate AP skill building and exam prep into a college-level textbook. Each section of the text offers unique skill-building approach to problem solving in The Takeaway:Tier 1: Key concepts covered in each section + review questions of these concepts Tier 2: AP Skill Building problems with bolded verbs that students will see on the AP exam (i.e. justify, calculate, etc.)Tier 3: AP Skills in Action problems that allow students to put their developing skills to practice Making physics accessible to all.