Leaves was a fanzine devoted to weird fiction edited by Robert H. Barlow.
Two issues of this mimeographed publication were released, the first in Summer 1937 and the second in 1938. It was published in Leavenworth, Kansas, U.S.A.
The contributors included H. P. Lovecraft and A. Merritt, and other writers of weird fiction. Leaves issue two featured the first publication of the six page story, "Collapsing Cosmoses" by Barlow and Lovecraft.
Barlow had collaborated with Lovecraft on six stories, and they had visited with each other for extended periods of time to work together. Barlow was interested in publishing and attempted to bind and distribute Lovecraft's The Shunned House (1928), but could get only a few copies done. More successfully he released two issues of the amateur press publication The Dragon-Fly in 1935 and 1936, which were followed by Leaves. Under his imprint Dragon-Fly Press, he released the first verse collection by Frank Belknap Long, The Goblin Tower, and The Cats of Ulthar by Lovecraft.
Lovecraft named Barlow his literary executor before he died in 1937. he had been interested in the fanzines that were being released in this period and contributed to several. In 1943 he moved to Mexico, where he was a professor of anthropology, He released several poetry books there, and a memoir of Lovecraft, The Wind That Is In The Grass. He committed suicide in January 1, 1951.