I'm involved in computer typesetting and TeX since the mid 80's, leading the LaTeX development since the the beginning of the 90's. You'll find my professional profile here. An interview jointly conducted by TUG and the Free Software Magazine on my involvement in LaTeX can be found here.

I've written and co-authored a number of LaTeX books that you can find in my profile on amazon.com (English books) or in my profile on amazon.de (German books).

If you want to sponsor my LaTeX-related work, then please take a look at my Github sponsor page.