Editorial:
Short training courses in science communication. Why? To whom? What? -- Paola Rodari, Emma Weitkamp.

Article:
1. Highlighting the wider relevance of science centre evaluations: a reflection on the evaluation of a physics engagement programme. -- Heather King, Emily Dawson, Rodolfo Leyva.
2. Science bloggers' self-perceived communication roles. -- Paige Brown Jarreau.
3. Mathematical thinking skills, self-concept and learning outcomes of 12-year-olds visiting a Mathematics Science Centre Exhibition in Latvia and Sweden. -- Hannu Salmi, Helena Thuneberg, Mari-Pauliina Vainikainen.
4. Combined art and science as a communication pathway in a primary school setting: paper and ice. -- Craig Stevens, Gabby O'Connor.

Book Review:
A handy guide to science-communication theory and practice. -- Achintya Rao.

Comment:
Open Science training and education: challenges and difficulties on the researchers' side and in public engagement. -- Nico Pitrelli, Stefania Arabito.
1. Open science. -- Ann Grand.
2. The time has come for managing and sharing research data in universities. -- Ignasi Labastida.
3. Open Access: what's in it for me as an early career researcher? -- Nancy Pontika.
4. Preprints and peer review: a lesson from physics. -- Alessandro Delfanti.