Principles of communication / Angela Hall and Peter McCrorie -- Preparation of the talk / Mal Morgan -- The three talks / Mal Morgan -- Visual aids / George M. Hall -- Computer-generated slides: how to make a mess with powerpoint / Gavin N.C. Kenny -- How to appear on stage / Alan Maryon-Davis -- How to sell a message / Martin Godfrey -- How to present a talk / Charlotte Green -- How to deal with questions / Sir Alexander Macara -- How not to give a presentation / Richard Smith -- How to chair a session / Roger Horton