I agree that it is vital to have some feedback on technique, particularly at the beginning. Lots of teachers, including myself, offer lessons via Skype or other videochat programs. I recommend having at least a couple Skype lessons and also using a DVD program as others have advised. Another good program is Sylvia Woods’ “Teach Yourself To Play The Folk Harp.” You can find it on harpcenter.com. Be aware that in addition to not having good tone, bad habits can cause serious physical problems like tendentious. Definitely get some feedback from a teacher for a good foundation before teaching yourself.