[proussea]

When I read it first time, it was ok to start to write C programs. When a read it again later I understood that it was much deeper and complete than it seemed first time.

Then, every time I learned something in programming using C (studying operating systems), I read K&R again and found that the answer was there even if I didn't see it before. So it was a good way for me to "validate" that I understood something new.

Note that I never used C at a very high level, and I don't know what is modern C programming, so it may not apply.

[astrodust]

It's still a historical relic with little to no applicability today. K&R style C is awful by comparison with modern C.

If you want to learn C history, it's invaluable. If you want to learn C, it's only the first of many books you'll have to read.