Do you guys have any math-themed books that present the subject in an interesting way? It can be general (e.g. about the most important problems) or more specific (e.g. algebraic geometry, analysis).
"Group Theory in the Bedroom, and Other Mathematical Diversions" by Brian Hayes. It is a bunch of essays and are fairly approachable. Some of the titles are a bit risque but all of them are safe for work and interesting.