A Tandy class for learning the tools and how to use them, then a pattern some tools and some leather, then jump in and do it. You can always re-purpose the leather if you mess up, which you will LOL. The 3 book set on making leather cases is a great reference, find them on sale every few months. Also the book on tools uses and sharpening them is good. Sharp is very important as to quality looks of the end product. Don't worry about buying a bunch of tools as you will eventually.