Who's the Pro?
Most tennis pros are skilled tennis players, but not all are certified teachers, which is a big part of a good pro's job. Before signing up for pricy lessons, you should find out if they're National Tennis Rating Program (NTRP) certified, and then find out what their association and ranking is. You'll also want to find out how long they have been teaching, the ages and levels of play of their students and what kind of clubs they've worked for. Teaching at summer camp is quite different than working for a year-round tennis club.