We have an uneasy relationship with the relentless deluge of information gushing out of academia and our media outlets. To turn it off is escapist, but to attempt to cognitively grapple with it is overwhelming. In Unforgettable: Enabling Deep and Durable Learning, a nationally recognized master teacher gives professors and their students the means to chart a clear path through this information explosion. Humans crave explanatory patterns, and this book enables teachers to think deeply about their academic disciplines to find and articulate their core explanatory principles and to engage their students in a compelling way of thinking. An alternative title for this book could be Why the Best College Teachers Do What They Do because the author articulates a compelling rationale that will equip faculty to create and deliver transformative courses. Students in transformative courses grapple with essential questions and gain mental muscle that equips them for real world challenges. W. Michael Gray is professor and chair of the Department of Biology, Bob Jones University, Greenville, South Carolina. His teaching philosophy has been honed through a forty-year career in higher education, during which he has been recognized twice in Who's Who in American Education and three times in Who's Who Among America's Teachers. He is the founder and director of a faculty development program called the Summer Institute in Teaching Science that recently completed its twelfth summer.