The art of lecturing. How to become a scientific entertainer.

It is known to all nutritionists and food scientists that the presentation of papers at (inter)national meetings is not always optimal. In this paper on effective lecturing some very practical advice is presented on how to entertain the audience scientifically. With the prerequisite of a clear scientific message, the basic elements for an optimal presentation are discussed with emphasis on the proper use of audiovisual means, including slides and overhead transparencies. Some additional comments are made about posters, chairpersons of sessions, and audiences.