Roberto Mignani is Staff Astronomer, INAF-IASF, Milan (Italy) and Professor in Astronomy at the University of Zielona Gora (Poland). His research comprises multi-wavelength astrophysics and observations, time-domain astronomy and High-Time Resolution astrophysics, sky surveys, multi-wavelength studies of neutron stars and stellar-mass black holes, stellar evolution, supernova remnants. Andrew Shearer is Personal Professor at NUI Galway. His research focusses on optical and multiwavelength observations of Pulsars as well as astronomical Instrument development - particularly optical polarimetry.  Silvia Zane is Professor of Astrophysics at the Mullard Space Science Laboratory, University College London, UK. The main focus of her research is the study of the behaviour of matter and radiation in presence of extreme conditions: strong gravity, strong magnetic fields and strong velocity fields. Most of her research is in the field of compact objects (black holes and neutron stars). Agnieszka Slowikowska is a researcher at the Centre for Astronomy at the Nicolaus Copernicus University in Toruń (Poland). Her main interests are polarimetric studies of white dwarfs and pulsars, as well as polarimetric techniques and instrument development. She is also interested in exoplanets and debris disks.