Magical Jelly Roll Quilts by Kimberly Einmo. You learn to make these blocks and then a whole quilt, and she shows you several variations... with one block, four blocks, turning the block, etc. It's a great class. I went with just one block and added a border.
I finished piecing this quite a while ago and it's been hanging on my wall. I have a friend who comes over a lot and she's always saying how much she likes it and how much she likes the fabric, so I decided to finish it and give it to her.
It finishes about 17 1/4" square.
OH! I don't know if you've seen it, but Craftsy has some of the Quilt Con lectures on the site for free, and I really loved Jacquie Gering. I loved her so much that I purchased her class, Improv Piecing - Modern Design class. I have started watching it already, I'm still in the first lesson though because my iPad battery was dying last night. Are you taking her class?