The Photo-Secession was an early 20th century movement that promoted photography as a fine art in general and photographic pictorialism in particular.
Advertisement for the Photo-Secession and the Little Galleries of the Photo-Secession, designed by Edward Steichen. Published in Camera Work no. 13, 1906
Pictorialism is an international style and aesthetic movement that dominated photography during the later 19th and early 20th centuries. There is no standard definition of the term, but in general it
"The Black Bowl", by George Seeley, circa 1907. Published in Camera Work, No 20 (1907)
"The Rose", by Eva Watson-Schütze, 1905
"Fading Away", by Henry Peach Robinson, 1858
"Spring Showers, the Coach", by Alfred Stieglitz, 1899–1900