National Geographic - Lewis & Clark - Great Journey West Nat Geo's visual storytelling of Lewis & Clark's 'voyage of discovery'.
The Northwest Vegetarian Cookbook: 200 Recipes That Celebrate the Flavors of Oregon and Washington 200 recipes for creating meals straight from your local farmers market.
Portlandia: A Guide for Visitors A Portland guide book from the Portlandia team. I think they did it really well.
The Journals of Lewis and Clark (Lewis & Clark Expedition) First hand record of what Lewis & Clark encountered on their journey west.
The Portlandia Activity Book The Portlandia Activity Book! You'll love this if you're a fan of the show.
Lonely Planet Pacific Northwest's Best Trips (Travel Guide) Lonely Planet's Travel Guide to 33 fantastic road trips in Pacific Northwest.