Made a quilt where block is composed of 4 log cabin blocks. Two blocks have regular size "logs" and two blocks are narrow. When you sew them together they make a clam shell with a tail. Gave the mag away to my quilt guild which I am not longer a member of. Sorry...no idea which mag but was probably published 3 years ago. Willing to buy the mag!...BTW...border on the quilt was an ugly paisley but the quilt really cool.