While tennis coaches work from a similar body of knowledge, they tend to differ in how they prioritize and apply teaching methods, and philosophy. If a coach’s values compliment and reinforce a player’s values and the outlook of the player’s parents, then the relationship is probably a good fit. This month, I will address a narrow, but vital, coaching topic—learning. I have tried to simplify this complex area, by offering here, the headlines of my 20 favorite concepts on learning.