Waterfall is a masterfully designed artist’s book by the late American landscape photographer John Pfahl. Published by Nazraeli Press, this volume utilizes a unique accordion-fold binding that allows the 23 four-color plates to be viewed as a continuous, flowing sequence—mimicking the movement of the subject itself. Pfahl, celebrated for his intellectual and often playful approach to landscape, moves beyond mere nature photography to investigate the concepts of the “picturesque” and the “sublime” as they apply to the modern world. With an accompanying essay by Deborah Tall, the book serves as both a memorial to these natural wonders and a poignant reminder of their mutability in the face of ecological change.