From 23rd to 26th July the 26th International Workshop on Description Logics (DL workshop) is hosted at the Faculty of Engineering and Computer Science (Building N27, Multimedia Room). The DL workshops are the main international event of the Description Logic research community. They take place annually and aim at being an informal get-together that allows researchers to discuss the current developments in the area. This year the event is the biggest in its history with already 120 registered participants. The OWL Reasoner Evaluation Workshop (ORE) is co-located with the DL workshop and takes place on 22nd July. ORE also organises a live reasoner competition that runs during the DL workshop and compares the performance and correctness of state-of-the-art reasoning systems.