Edward Weston was a self-taught photographer who migrated to California from the midwest and began his career there as a commercial portrait photographer in Glendale. His early style was characterized by a soft-focus approach that emulated painting and was associated with a school of photography known as Pictorialism. Weston was also a member of Group f/64—a community of artist-photographers who developed a photographic vocabulary and visual style described as California Modernism. Here Daile Kaplan discusses how to identify prints by Edward and his sons Brett and Cole.