"This guide starts with "the three principles of visual communication": Humans are visual first, verbal second; our decisions and actions are based more on emotional reactions than rational thought; visuals are the most effective communications vehicles for evoking emotion and getting people to take action. It then presents "Seven Rules of the Road" for those seeking to maximise the impact of visuals: 1. Don't assume others will react to a picture or video the same way you do. Test visuals with your intended audience. (Cost-effective strategies are offered for how to carry out such testing). 2. Pair your pictures with words for highest impact and to cement them deeper into your audience's memory. 3. Make sure your images match your message. 4. Use genuine, not generic, pictures. 5. Invest the most in the first picture your audience sees, and in overall design quality. 6. To use pictures effectively, be diligent about taking them and storing them for easy sharing. 7. Choose your subjects carefully." (commbox)