Bilateral Graph

A bilateral graph is a type of bar graph that shows two (or more) sets of data.  The placement and coloring of the lines makes for easy comparison between the data.  In this graph, we have Canadian to Irish exports and imports.  We can see that in 2010 commerce between the two groups declined, as both exports and imports were lower than years previous.  The bilateral graph makes it easy for us to compare exports vs exports from other years, imports vs imports from other years, and exports vs imports from the same year.

http://www.icccmtl.com/about/canada-ireland-trade/