“The Great Courses The Secrets of Mental Math Arthur T. Benjamin Study Guide” is a book published in 2011 as part of “The Great Courses” series. Written by author Arthur T. Benjamin, this study guide focuses on the subject area of Mathematics, specifically covering the secrets of mental math. The book is written in English and provides insights and teachings on techniques for solving mathematical problems in one’s head. This study guide is a valuable resource for individuals looking to enhance their mental math skills and deepen their understanding of mathematical concepts. Factory Sealed!