Working on the second edition (to appear in 2021) of:
I'm a TeX enthusiast. After studying mathematics in Jena and Hamburg I've been working as IT Admin and Communication Officer onboard of cruise ships, now I work as a network engineer for an airline.
- TeXample.net with the TikZ example gallery
- LaTeX.org with its forums and LaTeX.net
- TeXblog.net, where I publish some ideas and news from the TeX world
and I'm an active user in math forums such as on matheplanet.com.