Schmaltz? One of my passions. The best is when you render your own and get the cracklings or gribenes, left behind. This is a good book. The Book of Schmaltz: Love Song to a Forgotten Fat https://www.amazon.com/dp/0316254088/ref=cm_sw_r_cp_api_glt_fabc_JFDTEXRVS46875R3FNNT
You may be interested in this, then.
It's pretty amazing. It is full color photography on every page too. The Book of Schmaltz by Michael Ruhlamn.
recommend Ruhlman's recipe in this book
http://www.amazon.com/The-Book-Schmaltz-Love-Forgotten/dp/0316254088