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These books are not provided by us, but are recommended for your education.
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Visit the National Locksmith Magazine Bookstore

(external link)
"Locksmithing and Electronic Security Wiring Diagrams"
by John L. Schum
$34.95 msrp
"Learn About...Electronic Locking Devices"
by John L. Schum
"Electronic Access Control"
by Gerard Honey
"Learn About...Basic Electricity"
by John L. Schum
"Basic Alarm Electronics"
by John Stanger
Schaum's Outline of Basic Mathematics for Electricity and Electronics
"The Locksmith's Study Guide For Basic Electricity"
by Richard Allen Dickey
Sold through The National Locksmith magazine
Site requires Free Registration to Access
$29.95 msrp

Books by Billy B. Edwards (and A.J. Hoffman)
(Sold through

In order to purchase books by Billy B. Edwards, you need to do three things.

1. Email telling which item you want, sales are first come first served.

2. When emailed it is available, Submit payment via PayPal to

3. Make sure has your shipping address to avoid delays.

Master Keying by the Numbers

Fifth Edition, Hard Bound with 399 printed pages covering;

  • Terminology
  • Cylinder designs and specifications
  • The Premise Survey
  • Hardware Schedules
  • The Standard Key Coding System
  • List format progression
  • The Standard Progression Format
  • The Matrix Format
  • Intelligent Cross Keying
  • Key Control Programs
  • Encryption Techniques
  • Construction Keying


 Shipping in US $5.00.



The Core of the Matter

Second Edition, Hard Bound with 342 printed pages covering every brand and type of Large and Small Format Interchangeable Core produced.  This book is the most complete source for interchangeable core information available anywhere.  Brands covered are;

  • ASSA, New and Old style
  • Best Style SFIC
  • Corbin Russwin New and Old Style
  • Dominion
  • Dom
  • ILCO (EHL) Key Bypass
  • Kaba Gemini
  • Lockwood
  • Medeco 32 Series
  • Medeco 31 Series



  • Reading
  • Sargent 6300
  • Sargent Signature
  • Sargent Old Style
  • Sargent Keso
  • Sargent Union Locks
  • Schlage LFIC
  • Schlage G Lock
  • Segal
  • Yale 1210, 1220 and Medeco 31 Series


 Shipping in US $5.00.

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