A really nice collection of prints** of collective nouns. This is a hush of librarians:

I also like the seemingly empty room of ninjas, but more for the term than the illustration. Several other great ones here, like:

a wunch of bankers
a deutschbag of nazis
a fixie of hipsters (coined here, actually)
a knot of string theorists
an array of geeks

**Wait, what's the collective noun for prints? A charming of prints?

• design
• language