Rockridge Press is the primary imprint of 10-year-old Callisto Media, a fast-growing, data-driven nonfiction publisher based in Emeryville, Calif., and New York City.

The company is best known for its specialized cookbooks and health titles, many of which are tied to specific diets (e.g. alkaline, keto, paleo), appliances (Dutch ovens, slow cookers), and health conditions (diabetes, Hashimoto’s disease).