Scientists quite often have to present their work graphically. This is common practice e.g. at scientific conferences. This module is a thorough introduction to poster design. It covers the planning phase, as well as the actual realisation, explaining in great detail a variety of issues such as generally accepted rules for content and layout, things that go down well with the target audience, colour symbolism, the use of illustrations and graphics, recommended fonts and other rules for text formatting, as well as special requirements of the print medium as opposed to on-screen presentations. Common mistakes are discussed and a checklist allowing the review of a poster is handed out. The students are shown numerous examples of existing posters by fellow scientists and from other sources.