As a mom of 4 boys and an upper elementary teacher for many years, I know all too well the struggle of finding books that appeal to 9-12 year old boys. Parents would often ask for recommendations for the best books for tween boys, and I always had some favorites to share. (This post may contain affiliate links which means I make a small commission if you make a purchase, at no additional cost to you. Thank you for your support!) Boys in this age group can be a true mystery. Generally speaking, they give one-word answers and are more