David Barnes is a Lecturer in Computer Science at the University of Kent, in Canterbury, England. He has been teaching introductory programming for over 25 years, and has practical experience of a wide range of programming languages. He has been teaching object-oriented programming in Java for over 10 years. David is passionate about the excitement that is inherent in computer science and is actively involved in promoting it as a subject area to high-school children. In addition to computing education, his main research is in the area of software engineering.
Michael Kölling is a Senior Lecturer at the Computing Laboratory, University of Kent, in Canterbury, England. He holds a PhD in computer science from Sydney University, and has worked in Australia, Denmark and the UK. Michael’s research interests are in the areas of object-oriented systems, programming languages, software tools, computing education. He has published numerous papers on object-orientation and computing education topics. Michael is one of the developers of BlueJ and, more recently, the Greenfoot platform.
David Barnes, CCIE No. 6563, is a senior manager for Cisco Advanced Services based in Richardson, Texas. The group he manages specializes in network consulting for many of the largest Cisco customers and is responsible for providing technical expertise on all Cisco routing and switching products.
Basir Sakandar, CCIE No. 6040, has dual certifications in Routing and Switching and in Security. His current role at Cisco is as an advanced services engineer in the Richardson, Texas, office. He has helped with the design and implementation of various technologies for Fortune 100 companies.