Book Review: 'Background Independence in Classical and Quantum Gravity', by James Read

This is a review of James Read's insightful book, Background Independence in Classical and Quantum Gravity. The book introduces various notions of background-independence which it then makes precise, and uses to make verdicts about background-independence on a wide range of examples of spacetime theories in both classical and quantum gravity. This short book is, in several ways, a worthy example of how technical philosophy of physics ought to be done. I first discuss the content, then raise a number points where I disagree with the book.