Though there are important differences between glider and power flying, there are considerable similarities as well. If you already have a power license, obtaining a glider rating will be easy. You do not need to take another written test and you can be recommended for your license after 10 solo flights. It's worth noting that obtainining a glider rating is an acceptable substitue for a Biennial Flight Review (BFR) and that most pilots believe that glider flying improves their power flying. If you have power experience but not a license, your course of instruction will be the same as a novice with your progress being helped by your experience.