The 4th International Conference on Human Computer Interaction Theory and Applications (HUCAPP 2020) will be held from 27th to 29th  February 2020  in Valletta (Malta). HUCAPP is part of VISIGRAPP, the 15th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications. The submission deadline for regular papers is 4th October 2019. Accepted papers will be published in the VISIGRAPP Scitepress proceedings and indexed by Scopus. During the conference there will be the following keynote speakers: Alan Chalmers, University of Warwick, United Kingdom Matthias Niessner, Technical University of Munich, Germany Anthony Steed, University College London, United Kingdom More information at the HUCAPP website http://www.hucapp.visigrapp.org/ Best regards Manuela Chessa -- Manuela Chessa, PhD Assistant Professor in Computer Science University of Genova - Dept. of Informatics, Bioengineering, Robotics, and Systems Engineering Via Dodecaneso 35, 16146 Genova - ITALY Office: Valletta Puggia 3rd floor, room 329 Tel: +39 010 353 6663 URL: www.dibris.unige.it/en/chessa-manuela