Corinna Kretschmar-Joehnk is the author of numerous design textbooks. She is a lecturer at Coburg University of Applied Sciences, a jury member at various international competitions, and founder and CEO of JOI-Design, one of Europe's leading interior design studios, with her husband Peter Joehnk and three new young partners Page directs. The focus of JOI-Design is on the development of design-oriented and for the time being relevant concepts for the international hotel industry. The agency deals with both privately owned boutique hotels as well as with young trendy hotels or luxurious hotel chains. To date, JOI-Design has realized more than 600 projects worldwide and has received more than 100 international Awards.