CliffsNotes SAT^® and ACT^®

SAT^® us a registered trademark of the College Entrance Examination Board, which was not involved in the production of, and does not endorse, these products. ACT^® is a registered trademark of ACT, Inc. Houghton Mifflin Harcourt has no affiliation with ACT, Inc. and our products are not approved or endorsed by ACT, Inc.