He published his debut novel
Kłopoty to moja specjalność, czyli kroniki socjopaty (Troubles are my specialization; or, the Chronicles of a sociopath) in February 2007 to a critical acclaim in the Polish press and in
Newsweek. Its main character, Tomasz Płachta, is a master in complicating not only his life, but also the lives of people around him. The sequel to this novel,
Socjopata w Londynie (Sociopath in
London), published in August 2007, follows the life of Tomasz in London. In July 2008 his third novel,
Klub samobójców (The Suicide Club) was published. In a review of the book, Piotr Kofta wrote: 'Koziarski's new book shows that the Polish popular literature now chooses topics so far covered by the "high literature"'. Koziarski also wrote a story
Dziewięć żyć kota Alberta (
The Nine Lives of Albert the Tomcat) for an anthology that appeared in October 2008; he is now working on the third and final book of his 'Sociopath' series. ==Bibliography==