If you mean Jack Feist the writer/poet, he appears to be a relatively obscure American literary figure associated with the 'New Human' literary movement. What I can verify: Poet and novelist: A biographical account identifies Feist as an American poet and novelist associated with the New Human movement. [Medium] Notable works: His work includes On the Net and Stationary: The American Journals. He is also credited with works published under the Paper Roses: The Imaginary Archive of a Canonical Life series, including What Was Lost, The Creeping Disease, Remnant, and Tiger Leap. [Goodreads +1] Collaboration with Johannes Sigil: Several of his books list Johannes Sigil as editor or collaborator. [Goodreads] ... source describes him rather grandly as a 'secret [fold]