Matthias Biehl has provided expertise to international and national companies on software architecture, software development processes and software integration. At some point he got a PhD. Nowadays, Matthias uses his background in software engineering to help companies to realize their digital transformation agenda and to bring innovative software solutions to the market. He also loves sharing his knowledge in the classroom, at workshops and in his books. Matthias is an instructor at the API-University, publishes a blog on APIs, is author of several books on APIs and regularly speaks at technology conferences.