That Amazon link takes you to an all-in-one-volume edition. As borrowed by Candace, they are 4 small books held together by a rubber band.
Hey, I saw a necklace made of rubber bands today! It was very beautiful. Bouncy and fun! On a live human being. At a poetry reading/art opening sponsored by the Northwest Cultural Council at Arlington Green Executive Center Atrium & Gallery.
P. S. Kim's handy link to "The Rubberband Man" by The Spinners! (Turn on your speakers!)