Professor Diomidis Spinellis is a Professor in the Department of Management Science and Technology at the Athens University of Economics and Business, Greece. From November 2009 to November 2011 he served as the Secretary General for Information Systems at the Greek Ministry of Finance. His research interests include software engineering, computer security, and programming languages. He has written the two award-winning “Open Source Perspective” books: “Code Reading” and “Code Quality” as well as dozens of scientific papers. He is a member of the IEEE Software editorial board, authoring the regular “Tools of the Trade” column. Dr. Spinellis has contributed code to the FreeBSD operating system and is the developer of UMLGraph and other open-source software packages, libraries, and tools. He holds a MEng in Software Engineering and a PhD in Computer Science, both from Imperial College London.