Here are some tips for creating an impactful PowerPoint presentation:

1. Keep it simple: Avoid cluttering your slides with too much text or images. Stick to a minimalistic design and use clear, easy-to-read fonts.

2. Use visuals effectively: Use high-quality images, charts, and graphs to make your points more clear and engaging.

3. Tell a story: Organize your presentation in a logical, coherent way and use storytelling techniques to keep your audience interested.

4. Practice and rehearse: Practice your presentation several times before delivering it to ensure that you are comfortable with the material and can present it confidently.

5. Be interactive: Encourage audience participation by asking questions, conducting polls, or using interactive elements like videos and animations.

6. Use appropriate transition and animation: Use transition and animation appropriate to the message you want to pass across.

7. Use a consistent design: Use a consistent design throughout your presentation to create a professional and polished look.

8. Avoid overloading your slides: Avoid cluttering your slides with too much information, as it can be overwhelming for your audience.

9. Test your presentation on different devices: Test your presentation on different devices to ensure that it looks and works as expected.

10. Be prepared for technical issues: Be prepared for technical issues by having backup copies of your presentation on different devices and be able to present even if something goes wrong.

A professionally designed PowerPoint presentation can be incredibly helpful in a number of ways:

1. To create a positive first impression: A well-designed presentation can make a strong first impression on your audience, helping to establish credibility and build trust.

2. To make your message more clear and effective: A professional design can make your message more clear and easy to understand, which can help to make your presentation more effective.

3. To keep your audience engaged: A well-designed presentation can help to keep your audience engaged by making it more visually interesting and interactive.

4. To save time: A professional designer can create a presentation quickly and efficiently, saving you time and energy.

5. To make you stand out from your competitors: A professionally designed presentation can make you stand out from your competitors and make your brand more memorable.

6. To make your message more memorable: A well-designed presentation can make your message more memorable by making it more visually engaging and easy to understand.

7. To make your message more effective: A professionally designed presentation can make your message more effective by making it more engaging, interactive and easy to understand.

8. To create a sense of consistency: A professionally designed presentation can create a sense of consistency throughout your presentation, making it look polished and professional.

9. To make your message more persuasive: A well-designed presentation can make your message more persuasive by making it more visually engaging, interactive, and easy to understand

10. To make your message more effective: A professionally designed presentation can make your message more effective by making it more engaging, interactive, and easy to understand.