I am an adult with no swimming experience. After 7 lessons with Alexander, I now know the basics of swimming. Though I am not yet a proficient swimmer (it's all about practice now), I thank Alexander for his patience and guidance in helping me to learn the basics. Alexander is a great teacher with a positive, encouraging attitude, and great insight on what, where, and how I could improve my various skills. He can look at my legs at the beginning of the lesson and tell if I've been running and my hamstrings are too tight! Overall, a great teacher that I would highly recommend. Thao