Karin Wahl is a professional designer and trainer for product presentation. As an expert, she has many years of experience in this field. She advises not only large companies on their visual appearance, but also owners of individual stores are among her customers. Recently, she also offers this advice digitally. She is an examiner at the IHK and a board member of the VMM association. Her three books "Gebrauchsanweisung Visual Merchandising" are very successful and meanwhile a "must-have" for all who deal with merchandise presentation.