I happen to know a few German street photographers, like Siegfried Hansen[1], for example. Now, I wonder, how do they publish their works and organize exhibitio

I happen to know a few German street photographers, like Siegfried Hansen[1], for example. Now, I wonder, how do they publish their works and organize exhibitions then? Is it possible that there are some exceptions in the law? [1] https://en.wikipedia.org/wiki/Siegfried_Hansen_(photographer) https://en.wikipedia.org/wiki/Siegfried_Hansen_(photographer...