Start with high-confidence food travel books, then narrow by subgenre or adjacent topics.
A Cook's Tour
Anthony Bourdain
Around the World in 80 Dinners
Bill Jamison, Cheryl Alters Jamison
The Prophets of Smoked Meat
Daniel Vaughn
Rice, Noodle, Fish
Matt Goulding
World Travel
Anthony Bourdain, Laurie Woolever
A Taste of Prince Edward County
Chris Johns
Dirt
Bill Buford
French Country Cooking
Mimi Thorisson
Super Sushi Ramen Express
Michael Booth
Invitation to a Banquet
Fuchsia Dunlop
Chicago Cocktails
Nicole Schnitzler
New York City Food Crawls
Ali Zweben Imber, Daryl Zweben Hom
Alpine Cooking
Meredith Erickson
The Essential Oyster
Rowan Jacobsen
Appreciating Oysters
Dana Deskiewicz
Green Mountains
Caroline Eden
Eat Copenhagen
Trine Hahnemann
Chaat
Maneet Chauhan, Jody Eddy
