Developed in 1996 by Vladimir Batagelj and Andrej Mrvar, Pajek has become an internationally renowned and awarded software enabling analysis and visualisation of large networks. In 2013, the authors were awarded the International Network for Social Network Analysis William D. Richards Software Award for their excellent open access tool for network analysis which ensures the development of the field. The software is continuously being upgraded, all upgrades are also accessible and explained to the users in extensive textbooks. For more on Pajek software, visit: http://mrvar.fdv.uni-lj.si/pajek/