As chairman of the Giordano Bruno Foundation, a humanist organization that is critical of religion, he has been identified as Germany's "Chief Atheist.
"[1] His books include the Manifesto of Evolutionary Humanism: A Plea for a Contemporary Culture,[2] and Die Kirche im Kopf (The Church in the Head).
His children's book Wo bitte geht's zu Gott?, fragte das kleine Ferkel ("Which is the way to God, please?, little Piglet asked") caused controversy for its depiction of religion.
From 1999 to 2007, Schmidt-Salomon was editor of the journal MIZ (Contemporary Materials and Information: The Political Magazine for Atheists and the Irreligious)[7] He has been CEO of the Giordano Bruno Foundation since 2006.
Schmidt-Salomon's book Wo bitte geht's zu Gott?, fragte das kleine Ferkel, illustrated by Helge Nyncke, was published in the autumn of 2007.