Espresso Lessons is the companion to Rock Warrior’s Way, with practical exercises. A good cup of espresso is big coffee in a small cup. Likewise, Espresso Lessons concentrates the essence of the Rock Warrior’s Way method. You’ll need the original Rock Warrior’s Way for the bigger story behind the practice, but for no-nonsense exercises to help you improve your mental game on the rock, this book is a gem.
Here is a blurb by Julie Ellison of Climbing Magazine about Espresso Lessons.