Bad Machinery is a 9-volume mystery and comedy webcomic written and drawn by John Allison that was launched on 21 September 2009 and include in the "Great Graphic Novels For Teens" list of  the Young Adult Library Services Association.
Bad Machinery is a webcomic written and drawn by John Allison and set in the fictional West Yorkshire town of Tackleford, England. September 21, 2009 (2009-09-21) In February 2016, Young Adult Library Services Association listed Volume 4 of Bad Machinery in its annual "Great Graphic Novels For Teens" list. Mystery, Comedy Allison, John (2013-04-02). Bad Machinery Volume 1: The Case of the Team Spirit. Oni Press. ISBN 1620100843. Allison, John (2014-03-25). Bad Machinery Volume 2: The Case of the Good Boy. Oni Press. ISBN 1620101149. Allison, John (2014-12-23). Bad Machinery Volume 3: The Case of the Simple Soul. Oni Press. ISBN 1620101939. Allison, John (2015-11-03). Bad Machinery Volume 4: The Case of the Lonely One. Oni Press. ISBN 1620102129. Allison, John (2016-04-20). Bad Machinery Volume 5: The Case of the Fire Inside. Oni Press. ISBN 1620102978. Allison, John (2016-11-29). Bad Machinery Volume 6: The Case of the Unwelcome Visitor. Oni Press. ISBN 1620103516. Allison, John (2017-05-30). Bad Machinery Volume 7: The Case of the Forked Road. Oni Press. ISBN 1620103907. Allison, John (2019-07-31). Bad Machinery Volume 8: The Case of the Modern Men. Oni Press. ISBN 1620104377. Allison, John (2020-01-08). Bad Machinery Volume 9: The Case of the Missing Piece. Oni Press. ISBN 162010668X. 
