Got any gossipy girly books (christmas ideas) gossip girl, seventeen, etc.?

[JennyCraig]

My sister loves really gossipy and girly books and shows. (gossip girl, seventeen magazine, etc) Do you have any good reads you'd like to share? She loved Kardashian Konfidential and a few others. Any celeb biographies, beauty books, anything similar? lol She's got so many and I don't know what else to get her.
Thanks in advance