Those 3 chart types are the only data visualizations I recommend using. I should have left out the pie chart, since I don't use those.
I wasted many years of my life at Compete obsessed about "data visualizations" only to learn that no one except me and my statistical team cared about them. Please don't waste as much time as I did playing with exotic visualizations.
;dc
Do you mean explain what a line, bar & pie chart are good for?
If you only mean that we should use only line, bar or pie charts, then I would say that scatter graphs at time have a good use of showing outliers, such as some guy who spends say ten minutes on the site, or visually able to show for example how many people spend ten minutes and how many 3. Communicate in other words much more information than a line, bar or pie chart can at times. I mean, people did not invent these other charts for no reason :)