These books and manuals are ideal for pressure wash contractors keeping abreast of the latest in business and technology. PWNA Wood Restoration Class Manual $79.95 PWNA House Washing, Roof Cleaning and Commercial Buildings Class Manual $39.95 PWNA Marketing & Bidding Class Manual $39.95 PWNA Job Safety & Chemical Use Manual $39.95 PWNA Environmental Cleaning Class Manual $39.95 Phil Ackland's Kitchen Exhaust Cleaning & Certification Manual $159.95 BLR 7-Minute Safety Training Book Non-member Price: $295.00 PWNA Member Price: $250.75 PWNA Power Washing 101: The Basics $49.95 Power Washers of North America PWNA Members Make The Difference! PWNA Headquarters 1410 Energy Park Drive, Suite 6 Saint Paul, MN 55108 Toll Free: 1-800-393-7962 Email: info@pwna.org