Home › Authors › Manhattan Prep (Firm) 👤 Manhattan Prep (Firm) 9 books Books by Manhattan Prep (Firm) GRE math strategies GRE math strategies 2018 GRE verbal strategies 2018 TOEFL 5 lb. book of practice problems 2017 GMAT foundations of math 2016 5 lb. book of ACT practice problems 2015 10 Real LSATs grouped by question type 2014 Fractions, decimals, & percents 2014 GMAT roadmap 2014 Sentence correction 2014