As a retired electrician and proficient instructor with more than 30 years of practical experience, Stephen L. Herman is known for his reader-friendly approach. A seasoned author, Mr. Herman has written leading books on electricity and mathematics that are popular with students and instructors alike. For two decades Mr. Herman served as lead instructor for the Electrical Technology Curriculum at Lee College in Baytown, Texas, where he received an Excellence in Education Award from the Halliburton Education Foundation. He also taught at Randolph Community College in Asheboro, North Carolina, for nine years and helped pioneer an electrical curriculum for Northeast Texas Community College in Mount Pleasant, Texas. His additional publications include ELECTRIC MOTOR CONTROL, ELECTRICITY AND CONTROLS FOR HVAC/R, INDUSTRIAL MOTOR CONTROLS, UNDERSTANDING MOTOR CONTROLS, ELECTRONICS FOR ELECTRICIANS, ALTERNATING CURRENT FUNDAMENTALS, DIRECT CURRENT FUNDAMENTALS, ELECTRICAL STUDIES FOR TRADES, ELECTRICAL PRINCIPLES, EXPERIMENTS IN ELECTRICITY FOR USE WITH LAB VOLT EQUIPMENT, THE COMPLETE LABORATORY MANUAL FOR ELECTRICITY, and PRACTICAL PROBLEMS IN MATHEMATICS FOR ELECTRICIANS.

Nathan Chapin is an instructor at the British Columbia Institute of Technology in Vancouver where, after many years of working in industry, he teaches the Electrical Apprenticeship Program as well as the Automated Controls Installation Program and the Maintenance and Renewable Energy Installation and Maintenance Program. Chapin obtained his electrical journeyman qualification from the University of the Fraser Valley in Abbotsford, British Columbia, holds an FSR Class B from Technical Safety BC, and has a Provincial Instructor diploma from Vancouver Community College. He is an active participant in and current chair of the B.C. Electrical Articulation Committee. Chapin is a coauthor on Electrical Wiring: Industrial, published by Cengage Canada.

Ron Granelli is a professor in the Humber College School of Applied Technology''s Electrical Apprenticeship Program in Toronto since 2001. Granelli holds a diploma in Electronic Engineering Technology from DeVry Institute of Technology. He has over 39 years'' experience in the electrical field, including 30 years as a Licensed Master Electrician. He owned and operated an electrical contracting business that performed industrial, commercial, and residential work for over 10 years before joining Humber full time in 2005. Granelli is a coauthor of Electrical Wiring: Residential and Electrical Wiring: Industrial, published by Cengage Canada.

Craig Trineer is a professor in the Electrical Techniques certificate program in the Humber College Faculty of Applied Science and Technology and has also taught the Electrical Apprenticeship Program in Toronto. Trineer holds a master''s degree in Adult Education from Central Michigan University, having earned an undergraduate degree in Psychology from Concordia University in Montreal followed by a Construction and Maintenance Electricians License. He joined Humber College in 2001 after working for several years in the oil industry as an electrician and then as Senior Training Coordinator in a refinery. Trineer is a coauthor of Electrical Wiring: Residential and Electrical Wiring: Industrial, published by Cengage Canada.