The Code Book

Fourth Estate

The Code Book: The Secret History of Codes and Code-breaking

Anchor

The Code Book: The Science of Secrecy from Ancient Egypt to Quantum Cryptography (English Edition)

Microsoft Press

Code: The Hidden Language of Computer Hardware and Software

Staten House

NPT Code Book: The Neural Protocol to Rewrite Reality from the Inside Out

The Opportunity Code, Book 1: Visibility Engine: How to Transform Your LinkedIn Profile into a Magnet for Attention, Searches, and First Opportunities (English Edition)

The Opportunity Code, Book 3: Advancement Engine: How to Leverage Opportunities into Career Growth, Long-Term Influence, and Compounding Success Author: Andrew L Witherspoon (English Edition)

The Opportunity Code, Book 2: Opportunity Engine: How to Convert Visibility into Consistent Offers, Collaborations, and Career-Defining Opportunities (English Edition)

Stupid Bag Records

Code Book (The Accomplice)                      

Authorhouse

Life Code: The Vedic Code Book                  

Kenneth Mason Publications Ltd

The Dialling Code Book