I received this book as a Christmas present and I absolutely love it. It is presented in a Facebook status/updates layout (pre-timeline) and is basically a collection of FB posts through the ages. It is very witty and perfect for someone like me who spends rather a lot of time on social networks in general - guess that's why it was bought for me! :)
The books pokes fun quite a lot at historical events - especially the creation theories, so if you are a tad sensitive to this sort of humour, I suggest you avoid. But may I also add that (in my opinion of course) this is done affectionately rather than maliciously.