Watts is fun, but not very practical or informative. The anti-intellectual tendency of Zen makes it relatively difficult as field of self-study. All schools of Buddhism necessarily rely on teacher feedback, but the dependence in Zen is particularly acute.
The book I learned from is Wake Up To Your Life, by Ken McLeod. Mindfulness in Plain English is also excellent, and available for free online.
The book I learned from is Wake Up To Your Life, by Ken McLeod. Mindfulness in Plain English is also excellent, and available for free online.