Finally! My two major projects for the opera are finished, and I can get back to researching and posting more.
The book I am currently trying to find time to read, France in the Enlightenment, is a wonderful source and covers many diverse areas with some depth; from geography to economics, society to education, and more. I think I am going to have to give up on constantly renewing the library's copy, and just buy it for myself. It's well worth the investment, and available in the original French as well as translated into English.