like others have said, taking a few classes will help. The reason I say this, you learn certain techniques of tying material in, tying flies etc. that you don't get from step by step instructions. But I also suggest taking advantage of this sites instructions as well as other step-by-step websites available. Each tier has their own technique with certain steps, and trying these out will help you find the easiest way for you to complete a fly. Just because one person does it one way, doesn't mean it will work for you, so experiment with things and get comfortable. Many trout clubs have weekly tying gatherings, and this can also be a great way to get advice and such.