Shad Helmstetter, Ph.D., is the best-selling author of more than twenty-five books in the field of mental health and personal growth, including the classic What to Say When You Talk to Your Self, Negative Self Talk and How to Change It, and the 365 Days of Positive Self-Talk series. His books are published in over seventy countries. He joins Mark Alyn to talk about his new Self-TalkPlus App.