I found a great blog, Moda the Cutting Table, and they have several printable reference guides that I think are both interesting and also helpful : ) They are The ABC's of Moda Pre-cuts, How to Slice a Layer Cake, Yardage Equivalents, Quilt Blocks on Point, and a Quick Reference Guide for figuring the yardage for a quilt back. I printed them all!
Here is a picture of the block I made for my February swap partner for Block Swap Adventure. Margaret ask for a blue, geometric block. I used some of my favorite blue fabrics : )