What should I read before learning C?

Question

C++ / C#

Good afternoon. I opened the book by B. Kernighan and D. Ritchie "The C Programming Language" and in a summary came across the following lines:

The book is not recommended for beginners; for its study, it requires knowledge of the basics of programming and computer technology.

I have some programming experience in Python and Pascal. What do I need to read and study in order to start this book?

Answer 1

Nothing. From studying for 2 days in Kirov. And then 100500 days of the library and Tula. The main thing at once drive in that such the pointer, NULL and void*, Remaining by inertia.

Answer 2

Nothing, and if you don't know, then programming is primarily about developing programs, not reading manuals.