1. For "modern C" it would be K&R, then learn Haskell; especially take note of its type system and how you can apply what you learn there in C. 2. The C standa

1. For "modern C" it would be K&R, then learn Haskell; especially take note of its type system and how you can apply what you learn there in C. 2. The C standard draft, your compiler(s') manual and man pages if you're on POSIX. Also pencil and paper for drawing your arrays. Clarification about 1: Haskell has good solutions to a lot of problems that have plagued programming, learn them because they are not language-specific but are mindset-specific. The advantage is that once your mindset changes, you start paying attention to off-by-one errors and potential overflows and overruns. You also start paying attention to using the correct types in a C program and you start taking advantage of enums to reduce the space of possible states in each function in your program. Once this clicks, memory management is a breeze. Also learn the mindset of solving the problem at hand and nothing but the problem at hand. C is not a language for creating abstractions everywhere, it's a language for writing down as little steps as possible to solve that specific problem.