One highly recommended family medicine board review book is "Swanson's Family Medicine Review" by Alfred F. Tallia, Joseph E. Scherger, and Nancy Dickey. This comprehensive book covers all the essential topics needed to pass the family medicine board exam, including evidence-based guidelines, clinical pearls, and practice questions. It is widely used by residents and practicing physicians preparing for the board exam and has received excellent reviews for its thorough coverage and easy-to-understand format.