Excerpted from Encyclopedia of Rainbows: Our World Organized by Color by Julie Seabrook Ream, published by Chronicle Books 2017. Published with permission. Popular Science is delighted to bring you selections from new and noteworthy science-related books. If you are an author or publisher and have a new and exciting book that you think would be a great fit for our website, please get in touch! Send an email to books@popsci.com.
