I have some programming experience with Java and have built several projects, including a command-line data-fetching app, a to-do list, an expense tracker, and a tic-tac-toe game. I'm currently working on an HTTP server. I want to learn C because I'm interested in understanding what happens under the hood and getting closer to low-level programming.
When I learned Java, I mostly relied on video tutorials, and I struggled to fully understand some concepts. I'm still rusty with topics such as multithreading, so this time I'd prefer a well-structured written 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 resource would be the best fit for me?
4 Answers
The core language is fairly small, so learning the syntax won’t take forever. The harder parts are using it safely and effectively: pointers, null-terminated strings, manual memory management, compiler differences, and avoiding bad habits. Reading high-quality C code can help once you understand the fundamentals, but it shouldn’t replace a structured introduction.
All three are worthwhile, and there isn’t one universally best book. Beej’s guide tends to feel more modern and approachable, while K&R is compact and direct. C Programming: A Modern Approach is often a better choice if you want a slower, more comprehensive textbook-style explanation. Pick the one whose writing style suits you; the others will still be available later.
Kernighan and Ritchie is a strong choice. It’s concise, well written, and gets you working with real C code quickly. The exercises are useful too. C’s syntax is relatively small, but the real challenge is learning to reason about pointers, memory, and the consequences of that simplicity.
You could sample the introductions and first chapters of all three before committing. Even reading through more than one can be useful because each author explains the same ideas differently. The important thing is to write programs while reading instead of treating the book as something to finish passively.

That makes sense. I’m mainly looking for something structured enough to prevent the same gaps I had when learning Java.