The NEML sets can be ordered through the Math League .
Prices are approximate.
This is the first collection that contains AIME contests. Mathematical Olympiad Challenges. For those who wish to train for mathematical olympiads, there may be no better place to start. Titu Andreescu, the current AMC director and the director of the USA Mathematical Olympiad training camp, is a coauthor. Both are in the library, and I have issues of M and I that you may borrow.