Book excerpt: Recent work by mathematicians and physicists has uncovered revelatory connections between knot theory and the problem of developing a quantum theory of gravity. This book, the proceedings of a workshop held to bring together researchers in knot theory and quantum gravity, features a number of expository and research papers that will aid significantly in closing the gap between the two disciplines. It will serve as a guide for mathematicians and physicists seeking to understand this rapidly developing area of research. The book represents a state-of-the-art study of current research and progress. The editor is the author of Gauge Fields, Knots, and Gravity (World Scientific), a graduate level text on the topic.