There are 4 main parts to a formal presentation: 1) The introduction which tells the audience who you are and what they will hear. 2) Developing the body which is the most important part and where you present your information or ideas. 3) Using materials and involving people to enhance the presentation. 4) Concluding the presentation by finishing but hoping the discussion will continue with questions. Each part serves a specific function to effectively engage the audience and structure the presentation.