On: Algorithmic Thinking (2nd Edition)

[rudedogg]

I think knowing C makes you stand out, and demonstrates you understand how a computer fundamentally works.

https://pll.harvard.edu/course/cs50-introduction-computer-sc... is mostly C too.

I don't know C for what it's worth, but learned a different low-level language and found the experience to be enlightening, even after programming most of my life.