These are a few of the gardening books I own!
FROM SEED TO BLOOM by Powell A good book on plant propagation
THE PACIFIC NORTHWEST GARDENER'S BOOK OF LISTS by McNeilan What kind of shrubs do you use to attract wildlife? This book is at the top of my list to consult.
PLANTS OF COASTAL BRITISH COLUMBIA by Pojar & Mackinnon I have used this book extensively to figure out what kind of native plant I am looking at.
TREE AND SHRUB GARDENING FOR WASHINGTON AND OREGON are three of Marianne Binetti's books. She is a Northwest gardening expert, who has cowritten these three books with others. She is very knowledgable, funny as a lecturer and the books are beautiful and informative.