The National Electrical Code 1990 Handbook Hardcover is a comprehensive resource for electrical engineering students and professionals. Published by the National Fire Protection Association (NFPA), this handbook covers the subject area of electrical systems and codes. Authored by Mark W. Earley, this handbook is written in English and includes loose-leaf features for easy reference. With a publication year of 1990, this handbook is suitable for advanced and intermediate levels of study, making it a valuable addition to any electrical engineering library.