Brunelle, Lynn. The Zoo’s Shoes. New York: Workman Publishing Company, 2008.
Casey, Mark and Herbst Judith. Red Lace, Yellow Lace. New York: Barron's Educational Series,1996.
Frusher, Cody and Russell, Krystal. Lucas and his Long Loopy Laces. New York: Tall Tails Publishing House, 2009.
Hood, Susan and Wummer, Amy. Look! I Can Tie My Shoes! New York: Grosset & Dunlap, 2002.
• The Zoo's Shoes Photo
• Red Lace, Yellow Lace Photo
• Lucas and His Long Loopy Laces Photo
• Look! I Can Tie My Shoes Photo
• All Images remain the property of the respected developers