A fascinating book for anyone interested in Olympiad problem solving or educations is Count Down: The Race for Beautiful Solutions at the International Mathematical Olympiad.
“Count Down” is a narrative account of the 2002 International Mathematical Olympiad, which was held at George Mason University just outside Washington, D.C. It follows the six members of the U.S. team, their coach, and their guide (who was a team member several years ago), describing the qualities that led the Olympians to be among the best high-school-aged mathematical problem solvers in the world. More broadly, Count Down explores the following question: How does anyone learn how to do something extremely well?
The book prominently features the Director of MMC, Dr. Andreescu, as well as many other friends of the Metroplex Math Circle.