The three books I recommend are these: {0,1,2}. The first two are best read together and maybe sprinkle in a bit of [2]. If you are on Linux or Mac then the last one obviously has to be substituted for something else.
[0] https://deitel.com/c-how-to-program-8-e/
[1] https://en.wikipedia.org/wiki/Code:_The_Hidden_Language_of_C...