How do visual aids most effectively support a speaker's point in a speech?

VIsual aids are an amazing tool for speakers. They fulfill many functions during a speech, like making a more memorable impression of the topic, engage the audience and of course, they can act as clarifiers and reinforcements of the point the speaker is trying to make. Visual aids can come in many forms like video, pictures, charts or even props. And I must mention that nowadays with the advance of technology and how many things are trying to steal our attention away, I consider a visual aid a must during any speech.

the book's theme is the moral ambiguity of the iranian revolution, history of middle eastern relations and the process of growing up during war. it sheds light on the stereotypical views of middle eastern culture and religion.

the author explicitly portrays the issues of class disparities and racism continously throught the whole novel.

the relationship between parents and childrens, the abandonment of faith, modernity vs fundamentalism and class conflict are the 4 main panels that this novel englobes.

hope this , if you would like me to be more specific about a specific excerpt let me know : )