 Halley lives and works in New York City.Halley came to prominence as an artist in the mid-1980s, as part of the generation of Neo-Conceptualist artists that first exhibited in New York's East Village, including Jeff Koons, Haim Steinbach, Sarah Charlesworth, Annette Lemieux, Steven Parrino, Phillip Taaffe, Gretchen Bender, and .Halley's paintings explore both the physical and psychological structures of social space; he connects the hermetic language of geometric abstraction—influenced by artists such as Barnett Newman and Ellsworth Kelly—to the actualities of urban space and the digital landscape.