The 30 Power Principles Workbook Author:Horton, Will In The 30 Power principles Workbook, you will find self-evaluations, self-test, and questions and activites to accompany The 30 Power Principles. The workbook activites encourage you to take a closer look at yourself and your powers, through such activities as: Power of self-evaluations 12-month self-discovery plan Strengths and abilities ... more »evaluations Self-confidence evaluations and more.« less