Established in 1938, Kaplan Test Prep sells preparation materials for standardized tests through tutoring, on-site classes, asynchronous and live programs, print books, and digital products. With programs for individuals, schools, and businesses, Kaplan Test Prep offers preparation for more than 90 standardized tests. These include admissions tests for secondary school, college, and graduate school, such as the SAT, ACT, Law School Admission Test (LSAT), Graduate Management Admission Test (GMAT), Graduate Record Examination (GRE), Dental Admission Test (DAT), Medical College Admission Test (MCAT), Optometry Admission Test (OAT), Pharmacy College Admission Test (PCAT) and others. Kaplan also provides preparation for professional licensing exams include state-specific and Multi-State Bar Review for attorneys, USMLE and COMLEX prep for physicians, and NCLEX prep for nurses. Printed materials are distributed by Simon & Schuster. Kaplan Test Prep also licenses material for some of its courses to third parties and a Kaplan affiliate, which, during 2018, offered courses at 68 locations in 30 countries outside the US. During 2018, KTP enrolled over 340,000 students in its courses, including more than 171,000 enrolled in online programs. In 2018, Kaplan acquired the Barron's brand of test prep materials from Barron's Educational Series, which was renamed B.E.S. Publishing.