Abbott and von Doenhoff's book is actually a somewhat focused book. It basically works over the NACA profiles in detail. Before doing so, it does run through a lot of theory and hits on a bunch of experimental findings.

No way is it a book for the masses. You will make use of your engineering training for sure. It's heavy on the equations but also the charts and graphs.

Theory of Wing Sections was originally published in 1949. No, I didn't buy it new then, but I did pay $5 for a brand new 2nd edition. It is a paperback, after all.

It's almost 700 pages, but slightly more than half is appendix most of that devoted to the profiles. One of the best uses I've made is the list of references. There are a lot that included descriptions of the NACA reports themselves. It can save you a bit of effort selecting ones worth purchasing. That is, if they're still available. Haven't wanted any in years.