The 4th annual international conference “Learning Innovations and Quality” (LINQ 2015) has extended the deadlines of its three calls to 4 March, 2015 after a clear demonstration of interest by the community. After the successful conference from 2013 in Rome and 2014 in Crete, LINQ has decided to return to its birthplace of Brussels to investigate the theoretical and practical potential of openness in education as a widespread default.Submissions to all three calls must be sent by 4 March, 2015, using the official LINQ templates available on the conference website. All submissions to the Call for Papers are limited to a maximum of eight pages and will be reviewed by the international scientific LINQ Programme Committee through double-blind peer review. All submissions of research project descriptions to the Call for Projects are limited to one page and all submissions to the Call for Workshops have to answer all questions on the template completely.Submitters will be informed of their acceptance by 20 March 2015. All accepted papers and project descriptions can be presented at the LINQ conference, will be published in the official proceedings (with ISBN) and distributed to all conference participants worldwide and online under open access guidelines. Selected papers will be invited to be published in an international journal.Attendance at the LINQ 2015 is subject to a conference fee and requires registration through the LINQ website, as space is limited. The conference fee includes all provisions, including warm lunches, coffee breaks, the conference bag, and a copy of the official conference proceedings. At least one author has to register for the conference for the publication of an accepted paper or paper in the proceedings.Overview of the important dates:-          Paper submission deadline:              4 March 2015-          Notification of acceptance:               20 March 2015-          Camera-Ready copy due:                  31 March 2015-          LINQ Conference days:                      11-13 May 2015 in Brussels