Welcome to the Web site for the computer science textbooks of William Stallings. He is an 12-time winner of the Texty Award for the Best Computer Science and Engineering Textbook of the year, awarded by the Text and Academic Authors Association (TAA). All of the textbooks come with extensive support for students and instructors, including for instructors: projects manual for a wide variety of projects, PPT slides, solutions manual, and online mailing list; and for students: a student support page with useful links and documents, and supplemental online material including, for some books, supplemental online appendices and chapters.
My books:
5G Wireless: A Comprehensive Introduction – New
Information Privacy Engineering and Privacy by Design – NEW - details
Cryptography and Network Security, Eighth Edition – NEW - details 
Effective Cybersecurity: Understanding and Using Standards and Best Practices 
Computer Organization and Architecture, Eleventh Edition Winner 2016 TAA award for best Computer Science textbook of the year – new book - details
Computer Security, Fourth Edition Winner 2008 TAA award for best Computer Science textbook of the year
Operating Systems, Ninth Edition
Network Security Essentials, Sixth Edition
Cryptography and Network Security, Seventh Edition 
Foundations of Modern Networking: SDN, NFV, QoE, IoT, and Cloud 
Wireless Communication Networks and Systems – (with Cory Beard)
Computer Security, Third Edition Winner 2008 TAA award for best Computer Science textbook of the year
Operating Systems, Eighth Edition Winner 2009 TAA award for best Computer Science textbook of the year
Data and Computer Communications, Tenth Edition Winner 2014 TAA award for best Computer Science textbook of the year
Cryptography and Network Security, Sixth Edition
Business Data Communications, Seventh Edition
I created and maintain the Computer Science Student Resource Site. This site provides documents and links on a variety of subjects of general interest to computer science students (and professionals).
A number of my published papers are available for download.
ERRATA Here are the latest errata sheets for my books. If you find any other errors, please contact me at 
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