PrepSTEP This link opens in a new windowCollection of databases or "Centers" providing tools to assist with educational skills and career goals. Centers contain skill-building exercises, tutorials, e-books and interactive practice tests for professional and graduate exams. Includes Praxis, N-CLEX, GRE, GMAT, MCAT, LSAT, TOEFL, and more. Users may have to register for a free account to access some materials.