Book excerpt: A motivating and inspiring look at the father-son relationship. Dispensing with simplistic formulas and maxims common in other fathering books, seasoned author Jeff Kinley gives fathers the tools they need to have an amazing relationship with their sons. Written by a father of three teenage boys, A Dad-Sized Challenge is a practical, humorous, and motivating book that helps dads celebrate and nurture the god-given masculinity of their boys.