This is the kind of book they write about in Outside Magazine (and I've gotten some great book recs from Outside). In the early chapters, Powers explores the lives of nine different people in a series of stories, which share one common thread: they all involve dramatic experiences with trees. It's a slow build, but eventually the stories come together. (With 512 pages, Powers has lots of room to play.) This intricately crafted novel, which ultimately explores the connection between humans and nature, and the responsibility of one to the author, requires a patient reader.

From the publisher: "Winner of the National Book Award. From the Pulitzer Prize–winning author of The Overstory and the Oprah's Book Club selection Bewilderment comes Richard Powers's The Echo Maker, a powerful novel about family and loss. On a winter night on a remote Nebraska road, twenty-seven-year-old Mark Schluter has a near-fatal car accident. His older sister, Karin, returns reluctantly to their hometown to nurse Mark back from a traumatic head injury. But when Mark emerges from a coma, he believes that this woman—who looks, acts, and sounds just like his sister—is really an imposter. When Karin contacts the famous cognitive neurologist Gerald Weber for help, he diagnoses Mark as having Capgras syndrome. The mysterious nature of the disease, combined with the strange circumstances surrounding Mark’s accident, threatens to change all of their lives beyond recognition."