Wolff-Michael Roth, G. Michael Bowen, Professionals Read Graphs: A Semiotic Analysis, Journal for Research in Mathematics Education, Vol. 32, No. 2 (Mar., 2001), pp ...

While charts and graphs obviously are a boon to our ability to communicate information about large numbers or complicated relationships, there are also hidden pitfalls.

Thanks to their visual simplicity, bar graphs are popular tools for representing data. But do we really understand how to read them? New research has found that bar graphs are frequently ...