Two books that I refer to, and would not do without:
1. Quilting Shortcuts by Maggie Malone - use it to figure out how many blocks I need to make for different size quilts, also did use it for fabric yardage needs, now use the Quilter's Fabric Calc.
2. Quiltmaking Tips and Techniques, a rodale quilt book - use it and refer to it (marked the page) for making binding corners, and tons of other hints.