The Great Courses Precalculus and Trigonometry DVD Set and Guidebook, published in 2011, is a comprehensive textbook authored by Bruce H. Edwards. This textbook, focusing on Mathematics and Trigonometry, is specifically designed for Adult & Further Education levels. The DVD format allows for convenient viewing, while the guidebook provides additional resources for students to deepen their understanding of the subject area. With a strong emphasis on Mathematics describing the real world, this educational resource is a valuable tool for those looking to enhance their knowledge in precalculus and trigonometry.