The symposium is organized within ICNAAM 2012 (International Conference of Numerical Analysis and Applied Mathematics). While organizational decision will be taken by organizers of ICNAAM, the symposium keeps its academic autonomy.Research on programming languages is among the core and ‘classic’ disciplines of computer science. Today the term computer languages usually encompass not only programming languages but also all sorts of artificial languages for different purposes whose ‘sentences’ can be processed by a computer.The aim of the symposium is to provide a forum for the dissemination of research accomplishments in areas that include all aspects of computer languages, their implementations, and related tools. The list of topics includes, but is not limited to the following:•Languages: theoretical aspects, programming languages of all paradigms, script languages, modeling languages, domain specific languages, graphical languages, markup languages, specification languages, transformation languages, agent-oriented languages, formal languages …•Implementations: theoretical aspects, compilers, interpreters, transformation systems, intermediate representations …•Tools: theoretical aspects, software metric, static analyzers…