This is a book review of The Cosmic Microwave Background: How It Changed Our Understanding of the Universe by Rhodri Evans. The book is part of Springer's "Astronomers' Universe" series, which aims somewhere between the popular-science book which begins with the basics and more technical works. This book, by Cardiff astronomer and blogger˛ Rhodri Evans, hits the mark here; it provides a good overview of the CMB to those with a basic knowledge of physics and astronomy. The text itself is pleasant to read and the book is about the right length for the discussion of this topic at this level. It is clear that Evans not only understands the material but knows how to present it well.