Having just picked up this very book I appreciate the caution, however I will point out that K&R's tome - while perhaps not the definitive guide to style, is an approachable, brief overview of the C language for those of us who took it in high-school prior to C99 and have since been re-exposed to C through Arduino IDE and OpenSCAD.
The O'reily cow book covers C99 and is a good companion.
The O'reily cow book covers C99 and is a good companion.