[1] Chapman's first published work was Jazztown, released in 1991 by Raven Arts Press.

This was followed five years later by The New Pornography, a collection of poems described as "darkly humorous" by The Irish Times.

Based on his own published story of the same name, he wrote the short drama film Burning The Bed, which starred Gina McKee and Aidan Gillen.

[4] Chapman has also written five episodes of the children's television series, Garth and Bev, for Kavaleer Productions.

[6] Chapman is the co-founder, along with writer Philip Casey, of irishliteraryrevival.com, which seeks to create "a place where readers could find books no longer available elsewhere, and where writers could get a new audience for their texts, while stimulating interest in their work as a whole" and where all the books are placed on the site under a Creative Commons License.