Three of the books are instructional and one is a catalog.
Easy Model Railroad Wiring, Second Edition Paperback Book By Andy Sperandeo
THE COMPLETE ATLAS WIRING BOOK from ATLAS MODEL RAILROAD Co., WIRING MADE EASY
KALMBACH WIRING YOUR MODEL RAILROAD BOOK train ho n gauge model DC DCC KAL12491
Vintage Ho Model Railroad Books Lot 6 HO Railroads Realistic Scenary Wiring (4)
Basic DCC Wiring for Your Model Railroad Book~Beginner's Guide~Conversions~NEW!
Wiring Your Model Railroad Book~DC~DCC~Beginners/Expert~Lionel Bachman Train~NEW