Rock Warrior's Way: Mental Training for Climbers has been a consistently good seller since its publication in 2003. Espresso Lessons takes the material into practical climbing situations - it is the 'how to' application of The Rock Warrior's Way intended to build upon and complement it. The most challenging moment in rock climbing is when your mind doubts whether or not you can continue climbing, knowing when it is appropriate to push through this doubt and when to back off is critical for taking "appropriate risks"