The Section for Sign Linguistics organized „Warsaw FEAST – Formal and Experimental Advances in Sign Language Theory„, an international conference devoted to the linguistic analysis of sign languages. Around 250 participants (many of them Deaf) from 25 countries gathered in the Old Library of the University of Warsaw. Thanks to two teams of interpreters, all presentations were interpreted into/from ASL, IS, PJM, English and Polish. The conference was a great success!