Everyone needs to read this book. It would make the world a better place if everyone knew about this introvert/extrovert stuff. Really, go read it. If you're thinking it's a bit long for something you might not have a big interest in - don't. It is a bit long, but you definitely don't have to read it all. You can pick out some sections and read it in whatever way you want. It's a very easy read as well. In short: There's no excuse to not read this book. Read it and spread the word.