<Li> Pros: graphs help the audience to visualize statistics so that they make a greater impact than just listing them verbally would . </Li> <Li> Cons: graphs can easily become cluttered during use in a speech by including too much detail, overwhelming the audience and making the graph ineffective . </Li> <Ul> <Li> Maps show geographic areas that are of interest to the speech . They often are used as aids when speaking of differences between geographical areas or showing the location of something . </Li> <Li> Pros: when maps are simple and clear, they can be used to effectively make points about certain areas . For example, a map showing the building site for a new hospital could show its close location to key neighborhoods, or a map could show the differences in distribution of AIDS victims in North American and African countries . </Li> <Li> Cons: inclusion of too much detail on a map can cause the audience to lose focus on the key point being made . Also, if the map is disproportional or unrealistic, it may prove ineffective for the point being made . </Li> </Ul> <Li> Maps show geographic areas that are of interest to the speech . They often are used as aids when speaking of differences between geographical areas or showing the location of something . </Li>

Visual aids fall into four categories. which of the following is not one of these categories