The Cengage Electrical Wiring 20th Edition is a comprehensive textbook based on the 2020 NEC, authored by Ray C. Mullin and published by Delmar Cengage Learning. This revised edition offers a valuable resource for students in the fields of technology, engineering, and education. With 848 pages, this trade paperback textbook provides detailed information on electrical wiring, making it an essential tool for those studying or working in the electrical industry. The text is written in English and is designed for trade school level educational programs. It is a valuable addition to any library, offering a thorough and up-to-date exploration of electrical systems and guidelines.