Slides or other visual aids should clarify and amplify the spoken word, not duplicate it. Graphical slides should be bold, simple images that convey concepts or ideas. Avoid using word slides. The visual aids below are those most commonly used. Whichever you use, exercise imagination tempered with good judgment in their design.
Good slides require standardization.
If followed, the guidelines offered here will assure highly legible, uncluttered slides and will help save time and expense. Bar graphs to compare magnitudes. An effective line graph that carries few words and can be quickly understood. Label the scales in units to avoid excessive zeroes in the scale numerals. A bar graph that quickly compares magnitudes.