As a last example of types of visua

As a last example of types of visual evidence,the slide sequence of Figure 4-19 shows an effective incorporation of a table.In essence,a table is a visual arrangement or words and numbers.Unlike a bulleted list,which is a one-dimensional arrangement,a table allows for multiple connections.In scientific presentations,many tables do not serve the audience,because the tables have too many rows and columns.In such cases,the text is often too small to read.In addition,the large number of table cells makes it difficult for the audience to discern where to look.Even if the presenter highlights one cell with a laser pointer,the large number of other cells can distract.If you remember from Chapter 3,people are able to process two,three,or four items at one time.That rule of thumb is a good one to apply to tables,both for the number of columns and the number of rows.