Introducing Bootstrap 4 (PDF)

Jörg Krause has been working with software and software technology since the early 1980s, beginning with a ZX 81 and taking his first steps as a programmer in BASIC and assembly language. He studied Information Technology at Humboldt University, Berlin in the 90s but left early to start his own company. He has worked with Internet Technology and software development since the early days when CompuServe and FidoNet dominated. He's been with Microsoft technologies and software since Windows 95. In 1998, he worked on one of the first commercial e-commerce solutions, and wrote his first book in Germany, "E-Commerce and Online Marketing", published by Carl Hanser Verlag, Munich.
Due to its wide success, he started working as a freelance consultant and author in order to share his experience and knowledge with others. He has written several books for Apress, Hanser, Addison Wesley and other major publishers along with several self-published books-a total of over 60 titles. He also publishes articles in magazines and speaks at major conferences in Germany. Currently, Joerg works as an independent consultant, software developer, and author in Berlin, Germany.
In his occasional spare time, Joerg enjoys reading thrillers and science fiction novels, and going on a round of golf.