Assorted links by Tyler Cowen December 24, 2011 at 12:31 pm in 1. Carved book landscapes. 2. What is it like to understand mathematics very well? 3. 25 beautiful university libraries. 4. How to get a retweet from a famous Nobel Laureate author. 5. Markets in everything; am I wrong to find this article somewhat offensive? 6. Interview with Larry Summers on the eurozone.