Book excerpt: Girls can be a mystery-even to themselves. Sometimes girls just need a little guidance and know-how. They get that and more with Pocket Guide to Girl Stuff. Acclaimed author Bart King delves into the secret world of girls-with the help of his five sisters and fifty other girls, of course. Girls can: Take the Friend Test to see how their friends rate. Discover their celebrity name! Learn the greatest, super-duper amazing diet of all time! Figure out why boys do annoying things. Fashion, friends, and fun stuff-everything is covered in this volume petite enough to fit in any girl's purse.