Preparation is the most important part of a successful presentation. The document outlines key elements to consider when preparing: the objective, subject, audience, place, time, and length. Understanding the objective and tailoring the presentation to the audience are essential. When selecting a time, morning is best as people are alert, while afternoon energy dips. The location should also be scouted in advance if possible to understand equipment, layout, and distractions. Presentations should be concise and under 45 minutes to maintain audience attention.