According to their website, the biome 5 alphabet project was created by two architectural designers who are inspired by the visual learning processes inherent in all children. Each biome 5 toddler t-shirt has a letter of the alphabet & animal whose name starts with that letter. For example, the O shirt has a wonderful octopus graphic. Each of the tees are made with 100% certified organic cotton in sweatshop-free environments in the USA. The bold graphics & colors on these products are sure to capture any child's attention & imagination.