Among popular science books, those that deal primarily with geology are sometimes approached with trepidation. It’s not uncommon to feel a touch of anxiety in trying to remember from past school lessons the different classes of rock and how they are formed, not to mention the chemistry involved. Robert M. Hazen, Clarence Robinson Professor of Earth Science at George Mason University and a senior scientist at the Carnegie Institution’s Geophysical Laboratory and author of several books, makes the subject very approachable and fascinating in The Story of Earth . Published in 2012, it presents the physical and geological history of the Earth over the past 4.5 billion years. The book is remarkable for its brevity, the main text coming in at 283 pages, without giving the reader the impression that he has merely skimmed over the history of our planet. For example, Hazen manages to explain in-depth the complex attraction between elements that allowed the fine particles that surrounded the...