Many books that challenge religious belief from a skeptical point of view take a combative tone that is almost guaranteed to alienate believers or they present complex philosophical or scientific arguments that fail to reach the average reader. Journalist Guy P. Harrison argues that this is an ineffective way of encouraging people to develop critical thinking about religion. In this unique approach to skepticism regarding God, Harrison concisely presents fifty commonly heard reasons people often give for believing in a God and then he raises legitimate questions regarding these reasons, showing in each case that there is much room for doubt.