Start with high-confidence northwest cooking books, then narrow by subgenre or adjacent topics.
The Fiddlehead Cookbook
Nancy DeCherney, John DeCherney
The Western Junior League Cookbook
Ann Seranne
The Portlandia Cookbook
Fred Armisen, Carrie Brownstein
PNW Veg
Kim O'Donnel
Lark
John Sundstrom
The Salmon Sisters: Feasting, Fishing, and Living in Alaska
Emma Teal Laukitis, Claire Neaton
Forage. Gather. Feast.
Maria Finn
The Oregon Farm Table Cookbook
Karista Bennett