and procedures with longtime market leader ELECTRICAL WIRING RESIDENTIAL, Twentieth Edition. In addition to comprehensive, authoritative coverage of the 2020 National Electrical Code (NEC), this trusted text will give you a thorough grounding in essential electrical theory and applications. Drawing on decades of industry and classroom experience, the authors guide you step-by-step through the critical tasks and responsibilities you can expect as a professional electrician in both new construction and existing homes. Extremely reader-friendly, the text offers detailed explanations without being overly technical, and content clearly relates the NEC to real-world installation processes used by today's professionals. Vivid Illustrations coordinate with the latest NEC regulations to provide further clarity, and foldout plans at the back of the text provide hands-on practice applying code requirements to prepare you for career success.