Buy Carol Doak CD how to paperpiece. It's the best instructional video I have seen to learn paper piecing and get it right the first time. I use lightweight vellum paper. Not the vellum used for scrapbooking. I bought a ream of it online and that will probably last me 20 plus years. If you don't mind drawing your pattern the deli sandwich wrappers bought at Sam's or Cosco 500 to a box makes good pp paper.