Your presentation faces a tough challenge: it has to compete against a multitude of impressions, rival events, and exciting and entertaining media offerings. Therefore, every mistake you avoid improves the chances of your presentation leaving a positive impression on your audience and standing out from the crowd.

The tools and design elements that PowerPoint offers are helpful and can be used to your advantage. However, to fully leverage these benefits in your presentation, you should definitely avoid some common mistakes when presenting with PowerPoint.

In the first part of this two-part blog series, we'll talk about 5 common mistakes that often happen when preparing a slide presentation.

1. Too much information at once

You click to the next slide and a page appears that is filled to the brim with text or extensive tables. This overwhelms your audience and discourages them from engaging with your content. You should generally avoid slides that are overflowing with information.

If you're presenting multiple points on a single page, you can use subtle animations to "click" through them one after the other, guiding the audience step by step towards your main message. Be careful not to keep the audience waiting too long for the next relevant point.

2. No common thread

When structuring your presentation, ensure that the main theme remains clear throughout. Ideally, the audience should always understand the goal of your speech and how the content will develop to achieve it. Therefore, avoid including too much information off-topic and unnecessary jumping back and forth. Short summaries of the presentation content and intermediate slides will help the audience orient themselves and understand the bigger picture.

3. Errors and inconsistencies on the slides

Even though it should be obvious, it happens again and again: spelling or typing errors creep in; the content of a slide is not displayed in the same font as all other texts; one of the slides is significantly less extensive and therefore has a much larger font size; all sentences end with a period, except for this one.

Such flaws and inaccuracies may seem minor, but they magnetically draw attention—better than any catchy slogan—and distract the audience. This makes your presentation appear poorly prepared and unprofessional. Therefore, before you present to your audience, have someone else proofread it and take a fresh look to ensure everything is consistent in its design.

4. Unprepared, impromptu presentation

There may be people who are gifted speakers and can deliver an excellent presentation even without practice. If you're not one of these rare natural talents, then do yourself and your audience a favor by rehearsing your presentation a few times beforehand. This will make you more familiar with it and give you a confidence that will be noticeable when you speak. While practicing, you'll probably also come up with good phrases and important terminology that you should use in your speech and on your presentation slides.

You should carefully consider and memorize the opening text of your presentation beforehand. Ideally, you should conduct a rehearsal with a test audience before the actual performance. In these situations, both the listeners and the presenter themselves are likely to notice inconsistencies or weaknesses in the presentation.

5. Excess

Maintaining a sense of proportion is crucial for a presentation in two respects. Firstly, in abstract terms: Don't cram too much speech into your presentation; keep it concise. Your PowerPoint slides shouldn't be overloaded with text either, but rather visually support your points with relevant keywords or appropriate images. Secondly, in concrete terms: When practicing your presentation beforehand, time yourself.

If your presentation is too long, cut content, reduce your speaking time, and delete unnecessary slides. The audience only remembers what falls within their relatively short attention span.

Preparing a PowerPoint presentation lays the foundation for the quality of the subsequent presentation. Avoiding certain mistakes at this stage optimizes your chances of convincing your audience.

The second part of this article will discuss 5 common shortcomings that are unpleasantly noticeable in presentations.