You can think of it as a poster...or, you can think of it as armor against the slings and arrows of poor argumentative technique. 

The poster of the Taxonomy of Logical Fallacies is a Venn diagram listing and defining many of the most common errors of reasoning that you will encounter, and showing where they fall in the overlapping spheres of Argumentative Errors, Cognitive Errors, and Logical Fallacies. 

This 16"x20" poster, printed on heavyweight semigloss paper, is just the thing for your bedroom, den, mad science lair, chamber of inquisition, schoolroom, office door, or right next to your computer, where you can use it for easy reference the next time someone is wrong on the Internet. 

You can see a larger image of the poster here.