The Schaum’s Outline of Trigonometry, 4th Ed. is a comprehensive textbook authored by Robert E. Moyer and Frank Ayres Jr. It offers a detailed exploration of the subject area of Trigonometry, making it a valuable resource for students and those looking to improve their mathematical skills. With a publication year of 2008, this trade paperback book features 216 pages filled with valuable study aids and test preparation materials. Perfect for those seeking a reliable and informative guide to enhance their understanding of this essential mathematical discipline.