These are the books I've written, contributed to, or edited. If you're a publisher, agent, or author interested in working with me, email me at .

WordPress – Das umfassende Handbuch

Rheinwerk Verlag

When I was predominantly working as a web developer, I wrote this book of almost 1,000 pages that was published by Rheinwerk Verlag (formerly Galileo Computing). Rheinwerk Verlag is Germany's leading publisher of IT and photography books. My book is a technical guide to WordPress and was the best-selling book on content management systems at that time. I've maintained it for six editions over seven years.