"A Handbook of Programming in C" is an extensive guide tailored for both novice and experienced programmers, providing a thorough exploration of the C programming language. The book begins with the history and evolution of C, moving into essential concepts like basic syntax, data types, and control structures. It delves into core programming topics such as functions, arrays, strings, pointers, and user-defined data types like structures and unions. Advanced subjects include file I/O, dynamic memory management, and preprocessor directives. The handbook emphasizes best practices with sections on coding standards, debugging, testing, and performance optimization. Practical applications are highlighted through numerous examples, case studies, and hands-on projects. Comprehensive appendices provide references to standard library functions and common programming errors, making it a valuable resource for mastering C programming.