The The People Spotter's Guide Vol. 1: 1

The People Spotter's Guide, Vol 1 is a tongue-in-cheek catalogue, presenting over 100 types of humans. Every type is illustrated with a photo and - of course satirical - text, to help you spot these people in the wild. So you might run into an example of the Homo Securitatis Inferioris (security agents who don't look like they're strong) or the Homo Amantus Vestimentatis Identicus (an identically dressed couple). The guide encourages you to go out and explore your own biotope and to take a closer look at the people living in it. Every spotting is awarded with a number of points - the more rare the behaviour you've witnessed, the more points you'll get.