Diomidis Spinellis is Professor of Software Engineering in the Department of Management Science and Technology heading the Business Analytics Laboratory (BALab) at the Athens University of Economics and Business, Greece and Professor of Software Analytics in the Department of Software Technology at the Delft University of Technology. His research interests include software engineering, IT security, and computing systems. He has written two award-winning, widely-translated books: Code Reading and Code Quality: The Open Source Perspective. In 2016 he published the book Effective Debugging: 66 Specific Ways to Debug Software and Systems. Dr. Spinellis has also published more than 300 technical papers in journals and refereed conference proceedings, which have received more than 10500 citations. He served for a decade as a member of the IEEE Software editorial board, authoring the regular “Tools of the Trade” column and for four years at the magazine’s Editor in Chief. He has contributed code that ships with Apple’s macOS and BSD Unix and is the developer of CScout, UMLGraph, dgsh, and other open-source software packages, libraries, and tools. He holds an MEng in Software Engineering and a PhD in Computer Science, both from Imperial College London. Dr. Spinellis has served as an elected member of the IEEE Computer Society Board of Governors (2013–2015), and is a senior member of the ACM and the IEEE.