The “Understanding by Design Guide to Creating High-Quality Units” is a professional development textbook authored by Jay McTighe and Grant Wiggins. Published by Cengage Heinle in 2011, this trade paperback book offers a comprehensive guide to designing effective curricula in education and psychology. With 122 pages, this book provides insights into cognitive psychology, learning styles, and offers practical tips for improving the quality of educational units. It is a valuable resource for educators looking to enhance their teaching methods and create engaging learning experiences for their students.