The “Understanding by Design Guide to Creating High-Quality Units” is a professional development textbook by authors Jay McTighe and Grant Wiggins. It is part of the Professional Development Ser. published by Cengage Heinle in 2011. The book focuses on education and psychology, providing insights on creating effective curricula and understanding learning styles. With a trade paperback format and 122 pages, this guide offers practical tips and strategies for improving teaching methods and enhancing student learning outcomes.