W. Michael Kelley 
The Humongous Book of SAT Math Problems 
750 Math Problems with Comprehensive Solutions for the Math Portion of the SAT

The Humongous Books are typically 464 pages and contain 650 to 1, 000 completed problems. They are designed to look like textbooks with problems and answers that have had handwritten notes added by a mentor, peer, or previous student who clarified the process, formula, and steps that went into solving the problem.
The Humongous Book of SAT Math Problems takes a typical SAT study guide of solved math problems and provides easy-to-follow margin notes that add missing steps and simplify the solutions, thereby preparing students to solve all types of problems that appear in both levels of the SAT math exam.