Paul Coggle has taught German at all levels, from school to postgraduate, both in Britain and the USA.

Heiner Schenke has taught German at university level for many years. He currently teaches at Westminster University.

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