‘The EU towards international criminal tribunals. Genesis, Concept and Practice of Cooperation’ is a study that focuses on the important research question of the broad and multi-aspectual problem of criminal tribunals on the international arena. This has been tackled in many Polish and foreign publications, however, to date no work has studied the EU cooperation with the three international criminal tribunals – two ad hoc ones and a permanent one. Therefore, it is necessary to recognise the ambitious and pioneering task and venture that the chosen research field is highly appropriate not only if one casts an eye at the monograph title, but foremost the case put forward in the introductory part.