He participated in semestral educational stays at the Polytecnico di Milano - Studio of Clothing Accessories and Lighting Design. In 2006 he founded the design and interior studio - COHNSTUDIO. He cooperates with the companies Lucis, ELTON hodinářská a.s., Floriánova huť, EUROLIGHT, Sklárna bři. Jílkové and others. He regularly participates in international exhibitions of design, home accessories, designs jewellery and fashion jewellery accessories for fashion shows.