My Indigo World: A True Story of the Color Blue | 
pick4 ⭐ This interesting book is part, biography, and part history of indigo. The author goes into how indigo is made, how green leaves become blue pigment, and how indigo has been used throughout the world. While this is not a book, I want to read every night for story time it is a very interesting book that will teach children something about where the colors of the world come from.
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