In her article "Visualizing Electronic Literature Collections" Urszula Pawlicka discusses the development of electronic literature by visualizing material available in the Electronic Literature Collection <http://collection.eliterature.org/>. Her visualization of electronic literature presents a timeline with tag clouds of keywords related to works classified chronologically by dates of publication. Pawlicka's visualization includes also all keywords of the Collection (two date there exist three Collections) separately without division in the publication dates of works. Pawlicka argues that keywords turn out to be important data to demonstrate changes occurring in the history of electronic literature. Further, in her visualization of electronic literature Pawlicka discusses the three waves of electronic literature including two transitions between them.