Graphic designer and co-founder of Eps51, Berlin. The studio develops visual concepts with a strong focus on typography and bilingual design. Wittner and Thoma regularly take part in exhibitions, give lectures, hold workshops and initiate intercultural projects such as the book series Arabesque, Gestalten (2008 and 2011), the Right-To-Left exhibition (Berlin, 2012) and the Bi-Scriptual Book, Niggli (2018).