He did write some essays and articles, but these were primarily focused on photography and his artistic vision:
* "The Aim of Photography": This essay, written in 1902, articulated his belief in photography as a fine art form.
* Articles for Camera Work: He was the editor of the influential magazine "Camera Work" (1903-1917), and he wrote numerous essays and articles on photography, often featuring the work of himself and other photographers.
* Letters and Diaries: Stieglitz's personal writings, including letters and diaries, offer insights into his life and artistic process. They have been compiled and published in collections, providing valuable historical and biographical information.
However, he was not a prolific writer, and his main contributions were in the visual arts. He is best known for his groundbreaking photographs, especially of modernist landscapes and portraits, and for championing avant-garde photography and art.