The “Understanding by Design Guide to Creating High-Quality Units” by McTighe and Wiggins (2011) is a professional development textbook focusing on education and psychology. Published by Cengage Heinle, this trade paperback book provides guidance on designing effective curricula and addressing cognitive psychology and learning styles. With 122 pages, the publication is authored by Jay McTighe and Grant Wiggins, offering insights on creating high-quality educational units for professional development purposes.