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The Guides! Free downloads!

• Beej's Guide to Network Programming
  This is a beginner's guide to socket programming with Internet sockets. It is meant to be a springboard that will launch you into the exciting world of TCP/IP programming. This document has earned a fair amount of praise.
  Buy it in paperback!
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• Beej's Guide to C—Tutorial
  Do you already know another language and want to learn C? This is the Guide for you. This starts with the easy stuff (and pointers) and gradually adds more content as you progress. (Right now this still includes the library reference, but that is in process of being moved to its own volume, below.)
• Beej's Guide to C—Library Reference
  This is the second volume of Beej's Guide to C: the standard library reference, complete with examples. (Inspired by the incomparable Turbo C Bible.)
• Beej's Guide to Network Concepts
  What? Another network guide? Yes, it is! This one's not about C, but is more about networking in general. It uses the rather-more-approchable Python for its network code, but also digs into other utilities and tools for working with networks.
• Beej's Guide to Git
  If you're suddenly needing to use Git for something, hopefully this is the Guide for you. Starting from zero, it builds up your Git mental model so that you can more easily make your way around. This isn't a cheat-sheet—the idea is that you'll form a foundation to build toward expert use!
  Buy it in paperback!
  Thanks for your support!
• Beej's Guide to Unix Interprocess Communication
  Now that you have extra-process communication going on with sockets, why not try your hand at some interprocess communication, eh? Shared memory, semaphores, signals, and memory mapped files await you!
• Beej's Guide to Learning Computer Science
  This is a short primer aimed at new computer science students. It's not about how to program, but rather about how to approach programming problems in general. These are some techniques for setting yourself up for success! (This is a beta document—corrections and enhancements welcome!)
• Beej's Guide to Python Programming [WIP]
  An alpha release of a programming book for absolute beginners. No experience necessary!
• Beej's Guide to the GNU Debugger (GDB)
  This is a quick introduction to using GDB, GNU's famous debugger, from the command line.
• Beej's Guide to Killing Dragons
  If you play Moria, this will help you slay Ancient Multi-Hued Dragons from the safety of your own home.
• Beej's Bit Bucket
  This is my programming-and-tech-related blog where I scribble down various pieces of information, as well as short programming tutorials. It's basically my outlet when I don't feel like writing an entire book.