Fellow speaker,
When using diagrams in your slides such as tables, pie charts, etc., try to keep them as simple as possible. Ask yourself, "What is the least amount of information I need to make this point?" For example, let's say your point is sales have increased from $10 million last year to $25 million this year. Create a graph of this change. Now take out all the numbers in the graph and on both axes. Put the words "$10 million" next to the first sales figure and the words "$25 million" on the last sales figure.
Simply,
Tim
