Introversion

I disagree, the point is simply that people are people regardless of type and introversion isn't such a special quality that it needs a guide or an FAQ, the perception as such only stems from how a lot of people tend to wrongly assume things about introverts and think that all of them must necessarily be loners on the Internet or something of that kind when the truth is far from that.

Think about it, why isn't there a guide on extrovert people then? That seems to be assumed to be the norm when people of all kinds exist and moods change all the time. The trait only indicates what you tend to be, not what you're going to be like all the time.

What i was just trying to say was, that since everyone have their own special needs, then they aren't really that special anymore.

And the reason why a Introvert "Guide" is even made, its because (and i hope you agree), most introverts aren't really vocal about their needs or their actions, unlike extroverts that are really open.

Seriously though, the image should be considered more as a "Introvert General FaQ", since being and Extrovert or a Introvert are just the extremes of the spectrum, nobody says you can't be somewhere around in the middle, or more inclined towards one side, people after all aren't On and Off switchs.

Edit: Another common misconception that can be cleared about Introverts is that they don't really shut up any kind of social interaction, but if you force them to it, they feel often weird or nervous, making them tired of it, so all in all the "hamster ball" isn't really a ball of total protection against everything, its just their comfort zone, and going beyond there or having someone invade it feels awkward or weird (Missing the right word :X).