If you are looking for more than recipes. then I suggest this book
by Giuliano Bugialli. I also love Marcella Hazan's books and Lorenza de'Medici's books for their history as much as for their recipes.
As much as I love Lidia and her food (and if you love her and haven't dined at Felidia, you are missing a fabulous experience, imho) her books are mostly recipe driven. Great recipes, to be sure......
and then there are the books of my favorite (and personal) Italian cooking maven, Anna Teresa Callen