In the northern United States, in Vermont, Walden is where Henry David Thoreau once lived and wrote his famous book.00Here also runs the Gihon River which Elgström portrays in this book. With the help of a large-format camera's meditative approach, he has investigated the boundaries between sun reflexes and the sandy bottom in the clear water, in the river with the biblical name.00The book has so-called Swiss binding. The black thread from the formation forms patterns in the images on some pages. In the closing pages we get to see the interior of a photo lab