Paper Piecing is like regular piecing. Imagine putting a piece of paper over your pieces before sewing the seam. That's all it is. Sew the seam, turn it over, cut 1/4" away from the seam, open it up and press. Repeat. I like the new Add a Quarter ruler with tapered edge, no folding card needed. I usually start with a stack of scraps or if fabric is planned, with a stack of squares and rectangles. I paper piece the simple pieces like flying geese, nine patch, and pinwheel. Faster for me as every block is perfect. No redos. I use vellum paper. For small intricate patterns I use Stable Stuff that stays in the quilt.