Prof. Gérard Henrion has been awarded the PhD Degree in plasmas physics at the University of Nancy (France) in 1985. He was then appointed by CNRS (French National Centre for Scientific Research) in 1988 where he developed skills and expertise in plasma diagnostics. In 2009 he joined Institut Jean Lamour, a research institute of about 500 people with research topics on materials, nanosciences, plasmas, metallurgy and surfaces. He headed there the department of chemistry and physics of solids and surfaces and got the position of scientific deputy director of the Institute until 2013. He is now heading the group of plasma, processes and surfaces at Institute Jean Lamour. He is a senior scientist who has got expertise in plasma physics, plasma diagnostics, plasmas nanoscience, chemical vapour deposition of thin films and plasma-assisted surface processing. For the last 15 years, he has been strongly involved in investigating the plasma electrolytic oxidation process with a special focus on the relationships that exist in between the material and the micro-discharge properties.