Many of the books you'll receive are board books made with recycled paper and soy-based ink. Soy-based ink makes paper more recyclable (because de-inking is easier), utilizes a renewable resource (soybean byproduct), and creates significantly less air pollution and hazardous waste compared to petroleum ink. Some of our Book Bundles for babies feature materials with textures different from paper, such as silicone and fabric, to keep storytime interesting and interactive.