The original! The SOFI method (squares on fusible interfacing) makes child's play of assembling watercolor quilts. Here's how: Place squares aligned on the grid (fusible side up), fuse in place, then take the entire project to the sewing machine as one piece, not two-by-two!. Fold and stitch horizontal seams. Snip intersections, then fold and stitch vertical seams.Sold as whole yards only, no fractions.If you are using Bonny Tinling's book Watercolor: An Easy Approach, order 2 yards for Tablerunner; 3 for 35 inch Square Wallhanging; 4 for 35x50 inch Rectangle Wallhanging; 6 for Baby; 8 for Lap; 14 for Twin; 20 for Double/Queen; 24 for King.