"Challenging, inspiring and practical."Bear Grylls"I can't think of anyone more qualified to write about the significance of knowing your purpose than my friend Ken Costa... His new book, Know Your Why, is absolutely foundational to living a purpose driven life."Rick Warren "Among the crush and the rush of life, there's no better guide in the pursuit of getting it right than my friend Ken Costa... I highly recommend Know Your Why, and am confident you will see more clearly and live more purposefully after absorbing the wisdom in its pages."Louie Giglio, Pastor, Passion City Church, Passion Conferences"This is an important and timely book. In a world of seemingly endless options, discerning the voice of God can be an increasingly difficult task. Ken draws on decades of experience to help Christians cut through the confusion and distractions and live lives in tune with...