fwiw they were still giving the red book to all new hires in ~mid 2013. Personally at the time I found parts of it to be interesting from a "company telling its own history" perspective, and other parts to be extremely cringe-inducing. That said, I'm sometimes a grumpy cynic, and I'm also familiar with some random rare aspects of FB history due to previously working for Harvard IT. (I started working there a year after Zuckerberg dropped out, so didn't have any overlap, but some of my colleagues there were directly involved in the disciplinary hearings regarding Facemash.)