K&R is an easy read and it will give you the basics if you want to go further. Just realize that modern production C is different and don't copy-paste this code into real things (they are glossing over a lot of details -- especially with regards to safety).
Next, I'd try "C the Hard Way" which is just as beginner, but is an attempt to make C programs safer (and expose you to some of the glossed over details)
Next, I'd try "C the Hard Way" which is just as beginner, but is an attempt to make C programs safer (and expose you to some of the glossed over details)