The 3rd Annual Conference of the POLTEXT international text mining community was held on September 13-15 at Waseda University in Tokyo. Organized by Kohei Watanabe, Lisa Lechner and Miklós Sebők (the principal investigator of the POLTEXT project at the Centre of Social Sciences, Budapest) the event featured tutorials and presentations by three other researchers of CSS: Márton Bene, Zoltán Kacsuk and Martina Szabó. For more information see poltextconference.org and poltext.tk.mta.hu.