The theme of EUROCALL 2014 was "CALL Design: Principles and Practice," which attracted approximately 280 practitioners, researchers and students from computer-assisted language learning (CALL) and related disciplines of more than 40 different nationalities. Over 170 presentations were delivered on topics related to this overarching theme. The topics included: (1) Applying principles from second language acquisition (SLA) and task-based language teaching (TBLT) in CALL; (2) Applying specific instructional models in CALL; (3) Preparing and delivering open educational resources, open courseware and open online courses for language learning; (4) Designing for open and independent online language learning; (5) Using competence or outcome-based frameworks (Common European Framework of Reference, IATFL, etc.) in CALL design; (6) Designing, applying and evaluating computer-based language tests; (7) Applying corpus-based designs and technologies; (8) Learning analytics and CALL design; (9) Synchronous and asynchronous computer-mediated communication (CMC); (10) Gaming and virtual worlds; (11) Mobile apps for CALL; (12) Telecollaboration and Online Intercultural Exchanges; (13) Using NLP and AI-based designs and technologies; (14) Using specific design tools for CALL; (15) CALL for specific contexts and purposes (institutional setting, independent use); (16) CALL for specific skills; (17) Successful CALL project designs; and (18) Developing strategies for teacher education and professional development. The conference programme consisted of workshops, symposia, and presentations and poster sessions on research, research and development, reflective practice, and European projects relating to these areas. The keynote presentations also shed light from different perspectives on developments in CALL. Seventy-one extended versions of papers presented at the conference are included in these proceedings. The papers are representative of the great variety of subjects presented at EUROCALL 2014. An author index is included. (Individual papers contain references.)