Q is a novel by Luther Blissett first published in Italian in 1999. The novel is set in Europe during the 16th century, and deals with Protestant reformation movements. The multi-use name "Luther Blissett" was used as a nom de plume by four Italian authors, Roberto Bui, Giovanni Cattabriga, Federico Guglielmi and Luca Di Meo. The four were part of the so-called "Luther Blissett Project", which ended in 1999. Now they write under the "Wu Ming" name.