Good book about Fig Trees
We don't have a specific book on our library just on fig cultivation, so I cannot recommend one to you. (Maybe we should get one, since fig trees have become more popular here in the Philadelphia area). I see that Amazon offers a few.
I've uploaded relevant pages on figs from a book in our library, The Fruit Tree Handbook. See attached file.
We have other books here in our library on fruit culture, should you want to visit -- or, your local public library may have suitable books.
BBG advice: How to Wrap a Fig Tree for Winter Protection
Hope this helps.