His speciality is working between the fields of Art and Philosophy. He is an editor of the journal Inaesthetics. Steinweg has worked on collaborations with artists such as Thomas Hirschhorn and Rosemarie Trockel.
In 2011 he curated the exhibition “Kunst und Philosophie” (Art and Philosophy) at the Neue Berliner Kunstverein.
He has given numerous talks, published many text and participated in art exhibitions. Nietzsche Map (2003) Hannah Arendt Map (2003) Foucault-Map (2004) The Map of Friendship between Art and Philosophy (2007) Spinoza Map (2007) The Map of Headlessness (2011).