10-Minute Toughness by Jason Selk (Author)

“10-Minute Toughness is a solid mental training program. In fact I feel it is the best of its kind. . . . [It's] what the title says: ten minutes a day that connects your talents and abilities to the outcome you're seeking. As a retired NFL player looking forward, I can see as many applications for the toughness Jason Selk's program brought out of me in the business world as there were on the football field.”
--Jeff Wilkins, Former NFL Pro Bowl Kicker