Here are some books available :

Maple Tree : Manual to Grow, Care, Prune and Solve Various Diseases Affecting Maple Tree by Robert Henry 

The Japanese Maple Tree Handbook: From Planting to Pruning: A Comprehensive Guide to Growing and Caring for Japanese Maples by Dylan Miles

How To Prune A Japanese Maple; eBook; Author - Dwayne Haskell

Tree Pruning: A Worldwide Photo Guide by Alex L. Shigo

Other than books, there are several online resources available at Oregon State University Extension site, which can also be really helpful in pruning trees in general. You can watch pruning videos in the series Pruning with the Pros. This video series covers a variety of pruning challenges associated with older trees and mature landscapes https://extension.oregonstate.edu/collection/pruning-pros

Here is another great resource https://extension.oregonstate.edu/catalog/pub/pnw400