Douglas Hansen

10 books • 5 series

Douglas Hansen lives in Palo Alto, CA.

Nov 23, 2018
Cover of Safety Super Star

Safety Super Star

Nov 1, 2011
Cover of Code Check Plumbing & Mechanical

Code Check Plumbing & Mechanical (Code Check Plumbing & Mechanical: An Illustrated Guide)

Mar 8, 2011
Cover of Code Check Commercial

Code Check Commercial (Code Check)

Jan 6, 2009
Cover of Code Check for California

Code Check for California

Sep 1, 2008
Cover of Code Check Building for California

Code Check Building for California (Code Check Building)

Sep 4, 2007
Cover of Code Check Building

Code Check Building (Code Check Building)

Aug 1, 2002
Cover of Code Check Electrical 3rd Ed

Code Check Electrical 3rd Ed

May 1, 2002
Cover of Code Check West

Code Check West

May 1, 1999
Cover of Code Check Electrical

Code Check Electrical (Code Check Electrical: An Illustrated Guide to Wiring a Safe)

Sep 1, 1996
Cover of Code Check

Code Check (Code Check: An Illustrated Guide to Building a Safe House)