I already have some programming experience with Java and have built several projects, including command-line data-fetching and to-do applications, an expense tracker, Tic-Tac-Toe, and a basic HTTP server that I'm currently working on. I want to learn C because I'm interested in understanding what happens under the hood and exploring lower-level programming. When I learned Java, I relied mostly on videos and struggled to fully understand some concepts, such as multithreading, so this time I'd prefer a structured, reliable resource. I'm considering Beej's Guide to C, The C Programming Language by Kernighan and Ritchie, or C Programming: A Modern Approach by K. N. King. Which would be the best choice for someone with my background?
4 Answers
Kernighan and Ritchie is my usual recommendation. It’s concise, well written, and gets you working with real C code quickly. The exercises are useful too. C’s syntax is fairly small, but using it safely and effectively takes much more thought, especially with pointers, memory, and strings.
The fundamentals of C are relatively compact, so the bigger challenge is learning to reason about pointers, null-terminated strings, memory ownership, and compiler differences. Reading high-quality C code can help after you understand the basics, but it shouldn’t replace a structured introduction. Build small programs and test your assumptions as you go.
Beej’s guide is a good option if you prefer a more modern, approachable explanation. It tends to provide more context and practical examples, while K&R is shorter and more direct. Either one can work, so I’d choose the style that makes you want to keep reading and writing code.
All three are worthwhile, and there isn’t one universally best choice. Start with whichever presentation appeals to you most; the other resources will still be available later. You could also compare their introductions and first few chapters before committing.
That’s what I like about it as well. Some people consider it too old, but the core language concepts and the writing are still excellent. You can always use a newer reference alongside it for modern standards and library details.