Books in this series have been completely revised and brought up to date to reflect recent large-scale changes in New York State's High School Regents exams. Let's Review books have been especially designed to prepare students for Regents finals in New York, but also make fine textbook supplements that can be used in high schools everywhere. In addition to subject reviews, each title contains either model exams or actual recent Regents exams with answers. Many teachers prefer to use Let's Review book as classroom companion texts to Barron's Regents Exams and Answers books. This review book, like the current Regents exam, reflects a new emphasis on basics of geography, now part of the high school curriculum. Formerly, this book's title was Global Studies.