A Row Robin is an exchange between a set group of friends. Everyone agrees on a block size and number of blocks per row. Then you each set out to create row one in your own theme. Once your row is done then you send it to the next person on the list and you get someone else's. You then make the same number of blocks to compliment their first row sticking with their theme and colors. This continues until everyone in the group has worked on every quilt. You eventually get your own quilt back with a row from each member. Its so much fun and the finished quilts are beautiful.