Alec Soth's "Sleeping by the Mississippi" explores America's "third coast" through a series of road trips along the Mississippi River. The book features 46 large-format color photographs that depict a diverse array of individuals, landscapes, and interiors, conveying themes of loneliness, longing, and reverie. Soth alludes to topics such as illness, race, crime, and religion, capturing an American spirit of wanderlust akin to Robert Frank's "The Americans." The Mississippi River serves as an organizing structure rather than the main subject, guiding the viewer through Soth's evocative and eclectic portrayal of life along this iconic waterway.