'Binley and Slater are two of the best electrical geophysicists in the world, and together have written a comprehensive, accessible textbook for anyone interested in electrical methods. By including a history of the methods, open-source software, and sections on theory, instrumentation, forward and inverse modelling, and applications, they've produced a 'one-stop shop' for all things electrical. This book starts with a primer on the most fundamental mathematics and builds up from there to topics outlining the state of the science, including helpful figures and sidebar information along the way. I strongly recommend this book to any student or practitioner interested in learning more about how to apply electrical geophysical techniques to shallow-Earth problems, and look forward to sharing it with my research students.' Kamini Singha, Colorado School of Mines