I loved The Look. I've been wanting to read this since I heard that the author, Sophia Bennett, had written an new one so I was super excited when I got home one day to find it sat in my living room. There may have been squealing involved.I've come to expect amazing covers from Chicken House and I definitely wasn't disappointed with this book. Covers aren't something I usually discuss in my reviews but I can't not mention it in this one because, yes, it has gorgeous blue edging. I was actually a little bit sad to read it because I didn't want to damage the cover but I did because, obviously, using my magical powers, I knew that the content inside the book would be even better than the cover, and that's saying something.A major theme in You Don't Know Me is social networking and I think this is something that needs to be mentioned more in books for this age group. It's hard to think of someone nowadays who doesn't have access to Facebook or Twitter or any other means of social networking. I am one of those people who is constantly checking my Twitter feed- something I'm not too happy about!- and so it was nice to see the consequences of these websites laid out in front of the reader. I was appalled at some of the events that took place and, like with other books, my faith in humanity was somewhat crushed.This was very much a character driven novel and I loved all of the characters. Written from Sasha's point of view, it was easy to become familiar with the way that Bennett writes and Sasha was very easy to like. I did feel sorry for her; if I was her, I wouldn't have acted the way that she did. That isn't to say that she was unrealistic, because this book was anything but. Jodie, Nell, and Rose, Sasha's best friends, were also extremely well-written and I couldn't help but fall in love with them a little bit. These are four girls, counting Sasha, that I would want to be friends with if they weren't fictional!You Don't Know Me has quickly become one of my favourite UKYA books. It is instantly recognisable as written by Sophia Bennett because only she could write something like this. It was a book that I thoroughly enjoyed and I'll definitely be recommending it to all of my friends.Thank you to Chicken House for providing me with a review copy