The vegetable tanned leather has been treated with natural tannins and starts out as a light creme color as seen in the product shots. The more the leather is exposed to direct sunlight the darker it gets, similar to human skin. It will also absorb the oils from your hands and slowly darken with use. So essentially the more journal is used and handled, the better it will look. This relationship between the materials and the owner is what makes the aging process of the raw leather so unique. It’s neat to see how the journal evolves and conforms to the user. (via Ugmonk » Blog)