Who wrote this
Rib David is a pen name and a production identity, and the book says so on its own copyright page. No biography is claimed for it and nothing in the manual rests on one. What stands behind the material is the sourcing: every safety temperature is USDA FSIS and cited, the pork grading section is sourced to USDA AMS, and everything that is craft practice rather than established fact carries a label saying so. There are four of those labels and they appear on all 191 entries.
Rib David