Neal Asher (born 1961 in Billericay, Essex, England) is an English science fiction writer. Both his parents are educators and science fiction fans. Although he began writing Science Fiction and Fantasy in secondary school, Asher did not turn seriously to writing till he was 25. He worked as a machinist and machine programmer from 1979 to 1987 and as a gardener from 1979 to 1987. He published his first short story in 1989. His novel, Gridlinked was published in 2001, the first in a series of novels made up of Gridlinked, The Line of Polity, Brass Man, Polity Agent, and Line War.

Asher's novels, with one exception, and most of his short fiction, are all set within one future history, known as the "Polity" universe. The Polity encompasses many classic science fiction tropes including world-ruling artificial intelligences, android, hive minds, aliens and time travel. His novels are characterized by fast paced action and violent encounters. While his work is frequently epic in scope and thus nominally space opera, its graphic and aggressive tone is more akin to cyberpunk. When combined with the way that Asher's main characters are usually acting to preserve social order or improve their society (rather than disrupt a society they are estranged from), these influences could place his work in the subgenre known as postcyberpunk.

He is published by Tor, an imprint of Pan Macmillan, in the UK. He is published by Tor Books in the United States.

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