Jon, calm down.
1. The determination as to where a subject is placed has nothing to do with how many views it may or may not get. It has to do with relevance to the general description of the forum.
2. You do not need to know that stuff you listed to keep an old truck going. There are several here who do know the theory of how those items work. They also know the tests to perform. Others may suggest just buying a relative cheap part or switching to a more simpler system. Either way it's NOT a "must understand" situation al all. In my 17 years here, I have noticed that folks just want to know how to fix a wiring or electrical malfunction. No theory, just get it fixed.
3. Nothing about fixing up an old truck is "shade tree". Stovebolt is here to share information on how to fix an electrical/wiring problem. Among other things. None of it is beyond anyone. With a little help, we get them on track. No need to study electrons. DIY with some help is not shade tree. Connecting things together with wire is basically all there is to it. When problems are encountered, we help find and fix.
4. No one is accusing you of bamboozle. The book is for those who want to go far beyond "getting an old truck going". Logic circuits and solid state design will not help that.
5. The post has 250 views. Curious folks. The post has 14 responses. Only 4 are unique. The others are you, me and "repeat customers".
6. I don't know how qualified the author is, just stating his education. He is a very smart man.
7. As I said, the sharing of a book to read is great. "Quantum Electodynamics in a Superconductor-Isolator Application" might be interesting to some also. The book you recommend and it's contents is very hard to comprehend. We just need to keep our old trucks going. Automotive Electrical wiring, troubleshooting and repair is much easier.
P.S. The gas gauge issues have hundreds of posts. It's not hard to understand how it works just hard to find the problem. Sometimes it's a mechanical issue. Sometimes a ground issue. As far as generator and voltage regulator, there is lots of info on how they work in Keith Hardy's "Old Online Chevy Manuals" Pick the year and read. Then post the question in the "Electrical forum".
Sorry to ruffle the feathers.