Those three may be fine (and indeed all you really need for representing most data) in some fields. In other fields though, they're entirely unsuitable. A lot

Those three may be fine (and indeed all you really need for representing most data) in some fields. In other fields though, they're entirely unsuitable. A lot of people have mentioned scatter plots. I'd quite like to know how you'd represent relationships between things using only a histogram or line chart. I realise that it's covered somewhat by the "95% of all cases" statistic, but really, as with most things, if all you're doing is visualising relationships, then that statistic is likely way off. The general point is a good one - use a visualisation that's appropriate for representing your data not one that's appropriate only for looking nice, but I think the message is lost somewhere in amongst the rhetoric.