Jürgen Thomas (born in 1948) studied physics at the TU Dresden from 1966 to 1971. In 1970 he had the first contact with electron microscopy and received finally his diploma and doctoral degree on topics of electron microscopy and electron-solid-interactions under supervision of Prof. Alfred Recknagel in Dresden. Between 1978 and 1989 he was responsible for the development of technologies for electron-beam welding and vacuum drying in the industrial research. In 1990 he went back to the electron microscopy and joined the Leibniz Institute for Solid State and Materials Research (IFW) Dresden where he has been working in the laboratory for analytical transmission electron microscopy until today. Thomas Gemming (born in 1969) studied physics at the University Karlsruhe from 1988 to 1994. He received his doctoral degree on high-resolution transmission electron microscopy in the group of Prof. Manfred Rühle at the Max-Planck-Institut für Metallforschung in Stuttgart in 1998. Afterwards he expanded his field of work to analytical transmission electron microscopy. In 2000 he moved to the Leibniz Institute for Solid State and Materials Research (IFW Dresden) where he is currently working as a department head for Micro- and Nanostructures. Additionally he is currently the executive secretary of the German Society for Electron Microscopy (DGE).