The most recent edition to the best-selling wiring manual, Ultimate Guide: Wiring, Updated 9th Edition explains home wiring and residential electrical systems in easy-to-understand terms for any DIYer or homeowner. Learn how to work with electric wiring and repair, replace, and install typical electrical-system elements. This most recent edition has been updated with the latest information on everything from recent code standards and smart home automation to renewable energy, LED wafer lighting, dimmer switches, new indoor and outdoor emergency systems, and more.