Learning GNU C
by Ciaran O'Riordan
The aim of this book is to teach GNU users how to write software in C. It is written primarily as a tutorial for beginners but should be thorough enough to be used as a reference by experience programmers. The basics are layed down in full in the first few chapters.
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by Al Aho, Jeff Ullman - W. H. Freeman
Aho and Ullman have created a C version of their groundbreaking text. This book combines the theoretical foundations of computing with essential discrete mathematics. It follows the same organizations, with all examples and exercises in C.
by Zed A. Shaw - LCodeTHW
A clear and direct introduction to modern C programming. The purpose of this book is to get you strong enough in C that you'll be able to write your own software in it, or modify someone else's code. The text is not for beginners.
This online wiki book is a quick and easy introduction to the ANSI C programming language. It is written by a novice, and is intended for use by a novice. However, it does assume some familiarity with a programming language.
by David Haskins - BookBoon
Using a series of web development examples, this book will give you an interesting glimpse into a powerful lower-level world. C is tight and spare and economical, and people who know C will ensure critical systems keep running.