Below is a link to the Open Research Library produced by Knowledge Unlatched with an excerpt from their announcement
"The Open Research Library (www.openresearchlibrary.org) is a hosting platform initiated and maintained by Knowledge Unlatched and BiblioLabs. It makes freely accessible scientific book publications, as well as other high-quality academic Open Access content, available to anyone for free use anywhere in the world."
The number of publications in the various categories is variable. I found only four books under "cooking," (three of them were on wine) but a more substantial collection under "biography".
You can investigate the ORL at https://openresearchlibrary.org/home