The author speaks highly of the book "C for Yourself". An electronic version of the book from the Microsoft Programmer’s Library 1.3 CD-ROM has been posted [0] on the truly excellent PCjs Machines [1] website, where a lot of other older programming information can also be read [2].
[0] https://www.pcjs.org/pubs/pc/reference/microsoft/mspl13/c/c4...