I can vouch for “By Hand and Eye”. I read it about a year and a half ago. It greatly helped my confidence when it came to determining dimensions.
Another good book I bought used for ($17 US dollars via Amazon) is Human Dimension and Interior Space by Panero, Julius, Zelnik, Martin. This book provides a lot of standard dimensions such as height of chairs, desks, cabinets. Depth of kitchen cabinets, etc.
Between the two I can answer many questions when designing something.
I think there’s a real possibility of getting tangled up with Fibonacci ratios and that kind of thing. Personally, I think that if it looks right, it is right. Develop an eye for it and you won’t need to use maths. Breaking rules also sometimes leads to an interesting look.
I’m not saying don’t read the books BTW (which look interesting). Just don’t become a slave to it.
Fibs are handy if you trade stocks or Bitcoin though!