The late Billy Graham had a personal policy of never spending time alone with a woman who was unrelated to them by blood or covenant. In her 2018 book Why Can’t We Be Friends? , Aimee Byrd critiques that approach, maintaining that it radically misunderstands a biblical approach to friendship. In this chapter-by-chapter review, Wilson defends the Billy Graham rule, pointing out the errors in Byrd’s arguments while acknowledging where her thinking is on target. Fifth in the Mablog Book Review Series