Frame your images
Very often we copy and paste images from our hard drive (or the Internet) into our presentations without making any enhancements or consider if they look thier best. Putting images in a frame can make them look better thus making our presentations look more professional.
Creating frames using your presentation software can be done quite easily by just simply adding a thick white border to selected images, then followed by adding a shadow. We can also use the frame feature, which is available in some presentation software, to get the same effect.
Here are some examples of the before and after results of framed and unframed images.
Notice the great improvements the frame can add to the visual appreance of your visuals. Give the above a try the next time you work on your communication visuals.