Joe Walewski has spent nearly four decades studying and stewarding the North Woods at Wolf Ridge Environmental Learning Center in Finland, Minnesota. A longtime mentor to Graduate Naturalists, he brings deep field experience and a naturalist’s perspective to his writing. This guide completes his North Woods trilogy that includes Lichens of the North Woods and Ferns & Allies of the North Woods. Through his work, Joe invites readers into a closer relationship with the often-overlooked wonders of the natural world.