If you know yourself to be a gifted muscian, then I would go ahead full steam at self-teaching. But, even so there is a caution - there are things only an instructor can pass on that are not in the books. If you are not that familiar with music or just a technician with another instrument, then I would not waste the time to teach yourself. I agree with Stevie. It is a frustration to learn on your own and it's even worse to unlearn bad mistakes when you do eventually find an instructor...if you can find one that will take a self-taught piper.