Hannes Wiher holds doctorates in medicine (Ph.D., University of Bern, Switzerland) and theology (Ph.D. Potchefstroom University, South Africa). He spent more than twenty years in Guinea, West Africa, directing medical, educational, and agricultural projects. During the last twenty years he has been a professor of missiology at theological seminaries in Asia, Africa, and Europe, lately mostly in France and Francophone Africa. He is president of a network of evangelical missiologists in French-speaking Europe (REMEEF, https://missiologie.net).