Heiner Schenke:
Heiner Schenke was born in Hanover and is a native speaker of German. He has taught German at university level for many years and is Director of the Institution-wide language programme at the University of Westminster. He is also the co-author of the Willkommen! course as well as several Teach Yourself books.

Paul Coggle:
Paul Coggle is an experienced university teacher of German, who has taught courses from beginner to postgraduate level. He was a pioneer in the development and use of multimedia language learning materials at the University of Kent, and has acted as a Language Consultant for the BBC and the University of Cambridge Language Centre. He has been series editor for the Teach Yourself language courses.