The default answer to everyone who has ever asked this question (including me last year) is to read K&R C, the 2nd edition of the original book published by C’s inventor.
I wouldn’t recommend powering from start to end like a normal book, I wouldn’t even recommend a hard copy, but it’s a comprehensive reference and the appendeces etc are good. I haven’t read much of it at all tbh but it’s nice to have. It’s still being sold but you can get it from a tonne of libraries etc. I got a pdf from a “friend”.
Otherwise, I recommend watching and following along with Free Code Camp’s several hour C tutorial. Their editor of choice is so outdated I was’t able to install a working copy, but using JetBrains Clion or VS Code or Visual Studio etc etc are all good replacements.
I’m still new to C so hopefully someone will come along who’s been doing it since the 1900’s.
The Malloc and Nick Barker YouTube channels also have some excellent C videos that you might like.
Thanks for sharing the article! I don’t know whether it’s possible to edit the title, but if it is, consider changing each use of “e.g.” (exempli gratia) to “i.e.” (id est) or “read:” (expression meaning the message that you believe should be read from between the lines) as I believe these changes might better communicate your intent. Thanks for adding the clarifying commentary to the headline though, it’s certainly more eye-catching and to the point than the publishers un-annotated version!
(This whole comment is assuming that these are your additions and not simply an earlier version of the headline. The version I saw through the link didn’t have them so I assumed they’re yours but they could’ve been removed by the publisher for the same reasons I suggested editing your title - if possible and you agree with my suggestions)