Handedness involves more than just the hands. Ask yourself these questions, and you'll have answers ready in your mind. Which foot do you kick best with? Which ear do you hear most clearly with? An individual who is more dexterous with the right hand is called right-handed, and one who is more skilled with the left is said to be left-handed.
This book is a visually-depicted story of the fusion of both, the left and the right, hands. Every page carries a pictorial depiction of both of them trying to prove to each other what they can do.
It concludes on a note that no hand is more superior than the other, both are equally important. They both go hand-in-hand. While being complete and sufficient enough for their individual roles, they both are incomplete when a task needs to be done in totality. It simply puts across the beauty of the inevitable dependency of each hand over the other.