This is like a Pantone colour guide for anyone who wants to experiment with natural dyes. It‘s not a how-to; it‘s an inspiration. Hundreds of examples of results from plants are presented in the same four ways: with & without alum mordant, then each of those modified with iron. Sasha Duerr encourages artists, designers or home dyers to look more closely at the plants growing around us, & also to use waste from food, florists, woodworking etc.