Kurt Geihs.

Fabrizio Sistini.

Rocco de Nicola.

Wide Hogenhout and Fabrizio Sistini.

Lutz Schröder, Patrick Maier, and Lilia Georgieva.

Markus Roggenbach.

I don't know that guy.

Benjamin Pierce.

Hartmut Ehrig signing a book for Markus Roggenbach.