The full title of this book is: The Mind Illuminated, A Complete Meditation Guide, Integrating Buddhist Wisdom and Brain Science for Greater Mindfulness.  
 
Written by Culadasa (John Yastes) & Matthew Immergut with Jeremy Graves, this is an encyclopaedic guide to meditation.  It's a large book (approx 23 x 19cm) running to 484 pages, including glossary and index.  Cadusa is a neuroscientist and a meditation master, both of which disciplines have contributed to a fabulous book if you are serious about learning more about the theory and practice of meditation.
 
"This book is a rare and valuable treasure, providing a detailed, step-by-step account of how meditation practice progresses.  Caladusa it the real deal, a living adept with decades of experience."  
Shinzen Young, author of The Beginner's Guide to Meditation
(from the back cover)