I have never read anything like this book before. It was creepy, it was intense and it was even funny (sometimes). I loved how it was written in the second person, it made it even creepier. Joe is mad, he really is, and he doesn't even realise how mad he is. He actually thinks the others are the sick ones, and he has to help them. Being able to know all his thoughts is strange; you have to agree with him sometimes, you have to laugh at what he is saying sometimes and you have to feel weird about what he is saying or doing most of the time. He made me uncomfortable too many times, I actually had to read some of the sentences twice to make sure that he said what he said (or do). He is a psycho and he is a stalker (even though he claims that he is not). Seriously the end of the book is just pure madness, I don't even know what to say since I'm still a bit shocked. 
 What I find so interesting about this book and about Joe is, because we're always in his head, and we know all of his thoughts, I kinda got lost into it. Because he is smart, and because he likes books and quotes books, and he does say the truth about a lot of things (I mean Ikea, right?), sometimes I found myself almost liking him, I felt sympathy for Joe until he said something weird and creepy and I remember that right, he is a psycho/stalker/murderer/serial killer. 
 Beck is obviously the victim but she is not likeable, she is narcissistic and she is crazy (in a different way). But I obviously felt bad for her, you can not just be happy at the end, the girl didn't deserve what happened to her, none of it is her fault. 
 If we read the beginning of the book from Beck's pov, Joe would have appeared like the perfect guy: he is apparently good looking (that's what he says), he is smart, he owns a bookshop so obviously he likes books and quotes books, but he also is moody but romantic, and he saved her life. Perfect boyfriend. But we read the book from Joe's pov and it's completely different. 
 I could say that it got me thinking about the danger of social networks and blah and blah, but I actually know better than that. The problem is not the social networks or the internet, the problem is the people, how they use it; and what they choose to do with it is the actual problem.