Douglas HansenDouglas Hansen is the principal author of
the Code Check series of
field guides to building codes and Electrical Inspection of
Existing Dwellings. He began working with Code Check in 198,
when founder Redwood Kardon
asked him to assist in editing the first edition of Code Check Electrical. Douglas eventually
moved into the principal authorship role for the series.

Douglas is a licensed general
contractor and holds numerous inspection certifications. For several years, he
taught residential and commercial electrical codes at the College of San Mateo.
He was formerly a principal member on the technical committee for Electrical
Systems Maintenance of the National Fire Protection Association. From 2013 to
2019, he worked for the City of Santa Clara, where he was the supervising MEP
(mechanical, electrical, plumbing) plans examiner and inspection supervisor. He
has authored dozens of magazine articles and books. He has served as an expert
witness in cases involving contractor and inspector standard of care, building
codes, and construction defects, and been certified as an expert in Superior
Courts in several counties. He provides seminars around the country to
inspectors, building departments, and electricians on building and electrical
codes, construction defects, and inspection techniques.

Skip Walker is a certified residential combination inspector, with a particular interest in smoke alarm performance issues and deck safety. Paddy Morrissey, former senior illustrator of CornerHardware.com, has been the sole illustrator for the Code Check series since its inception.

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