The emotion called love can make your head spin. And that’s okay! But sometimes it can make you feel confused. Can a guy tell when it’s time to give his girlfriend some space? Can a girl figure out whether a secret crush might turn into something more? Sounds like you could use a cool, reversible book that’s full of teen-friendly advice and straightforward explanations. Then flip the book to get a better idea of how guys and girls handle the joys and struggles of this huge emotion.