Businesses need to present their ideas and solutions in the form of PowerPoint design presentation so that their clients and workers will know better about what they are doing and what they are going to offer in near future. If you want to hire a presentation design company, then there are no restrictions but you need to take care about your budget in this case. If you are a startup or a small company then you does not need to hire any services, you need to learn how you can create your own templates and slides out of them. Here are some suggestions to follow and make an attractive presentation:
Consistency: It is the main feature which you need to adopt and take care of. You cannot use Calibri font 12 in one slide and then Arial font 18 in the next. For being consistent in your slides you need to use a feature called slide master and it will help you in being consistent throughout your presentation and you can even use it as a reference to your next presentations too. Your background must be same from first to last slide because if you add different colors or background images then it will look unprofessional and childish.
Concise: You need to make your information in a concise manner. No need to write long paragraphs having all the information in them. Just add significant information and tell the details while you present that slide. When you explain a slide better then the audience will be more engaging with you. You need to limit the word count for each slide and do not go beyond that count in order to leave some empty space on the screen.
Contrast: Colors pay a very important role in making your presentation readable and understandable. Imagine if you see a presentation with black background and purple colored font on that. Will you be able to read that? Obviously not, so you need to add the contrasting colors but make sure that the contrast should not be too sharp like white font on black background because it will create a visual impairment for some people if they look at it for long. If you are using black background then try to use light grey near to white so that the sharp effect of white color will suppressed.