Brown, P.C., Roediger, H.L. & McDaniel, M.A. (2014). Make it Stick - The Science of Successful Learning. Boston: Belknap Press (Harvard University Press).
All of us who teach should read this book. It uses stories of individuals who have engaged in complex and substantial learning as well as a deep understanding of the research literature to explore best practices in teaching and learning. It debunks some myths - for example, while there has been a lot of talk about learning styles, there is no real evidence of their existence and attempts to match learners' preferred style with content have produced no significant gains for learners. The book is accessible, very well written, insightful and compelling. A must read.
Useful summaries of this book are available here: http://makeitstick.net/index.php