Color in floral yin yang symbols for meditation, relaxation, and stress relief. All images are one sided for ease and comfort. The flip side can be used to write down ideas and answers inspired while coloring. The numbers at the bottom of the page are in Chinese in keeping with the existential experience of coloring yin yang, and are explained in the bonus section at the end. Yin and yang is a complex concept in Chinese culture that has developed over thousands of year: The universe is governed by a cosmic duality, two opposing and complementing principles or cosmic energies that can be observed in nature. Product information: Matte cover finish, perfect bound, 70# quality interior paper for crayon, color pencil and marker use.