Out of all of your favorite books, pick just one you'd recommend everyone read. As a bonus: why did you pick that one?
Only one? And if they're in the same series, more than one doesn't count? :P Hahhaha.
I have a hard time picking between those four books, as they are all my absolute favorite (and in the same series). :)
But if I had to pick one of them, Extras. Because it teaches people fame isn't always the #1 thing, and there are more important things in life. However, if you haven't read the other books some of it might not make sense.