Best, well depends on your level of knowledge etc but I would pick up C Programming Language by K&R, you can't go wrong with learning from the authors of the language.

I'd like to recommend the books:

C All-In-One Desk Reference For Dummies by Dan Gookin (read first)

play with the language, write programs, experiment.

Now, once you get a bit better, go read The C Programming Language by Brian Kernighan and Dennis Ritchie .

The 2nd book is referred to as "K&R C" most of the time.

Also, check out the YouTube channels Handmade Hero,

You can start with C Primer Plus, C Programming or Udemy. Also go for online videos.

As for IDE, if using windows, try out Visual Studio Express or if you are on Linux or Mac OS, go for CLion.