Serious learners: this is the Digital SAT vocab book you're looking for. Built with love by a Harvard Ed.M grad who has led thousands of students to higher test scores, and newly updated for summer 2025! DIRECT HITS FROM THE TEST: Robert’s Guide is based on a meticulous, up-to-date analysis of all official Digital SAT exams -- Bluebook practice tests, College Board's Question Bank, and real exams -- and provides unmatched coverage of the words that frequently appear. CLEVERLY ORGANIZED: 32 thematic chapters, clustered synonym sub-groups, and Latin & Greek prefix/root analysis help you learn words so they actually stick.