In the year of the 50th Anniversary of GIREP, the GIREP Seminar 2016 was organized in Krakow, Poland by GIREP vzw and the Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University. We are happy to announce that GIREP Seminar 2016 Proceedings, entitled: Research-based proposals for improving physics teaching and learning – focus on laboratory work are now available on-line at: http://www.girep2016.confer.uj.edu.pl/docs/GIREP_2016_Proceedings.pdf/ We hope that these Proceedings will give the readers the opportunity for deeper comprehension of different aspects of the laboratory work at all levels of education. We wish you enjoyable reading!