#include <stdio.h>
#include <stdlib.h>

int main(void) {
	if(puts("Hello World") == EOF ) {
		return EXIT_FAILURE;
	}
	return EXIT_SUCCESS;
}

language

c preprocessor

c basic types

c derived types

c qualified types

c functions

c scope

c object lifetime

standard library

libraries

tooling

learn

The C Programming Language - K&R

https://nostarch.com/Effective_C

Seems like a nice book on modern C which covers tooling and lots of gotchas.