San Juan Islands Cruising Atlas
[ISBN 978-1-934707-48-7]

I like having the aerial photographs to give me a solid reference for planning. Some of the photos are from slightly above the boaters perspective, and have black arrows indicating the best approach into the harbor. I have relied heavily on the safety chart that gives an overview of the whole archeapelago with the rocky reef areas marked in red, and I would buy it for this feature alone.