The document provides 10 guidelines for preparing and delivering effective oral presentations: 1) Define objectives and understand audience and context. 2) Select an appropriate delivery style based on purpose and audience. 3) Focus on a few main points given audience attention span. 4) Use clear structure and signaling. 5) Employ a conversational style. 6) Maintain eye contact with audience. 7) Exhibit enthusiasm and interest. 8) Prepare for questions. 9) Accept and work with nervousness. 10) Rehearse extensively. It also provides tips for preparing informative and persuasive speeches, including outlining, anticipating questions, and concluding powerfully.