This volume is a continuation of Mathematical Olympiads 1999-2000: Problems and Solutions From Around the World, republishing hundreds of mathematics problems and solutions from that book as well as selected problems (without solutions) from national and regional contests in 2001. The collection provides practice material for serious high-school level mathematicians who wish to prepare for the USA Math Olympiad (USAMO) and Team Selection Test (TST). The newly added 2001 problems were contributed by dozens of countries including Korea, Belarus, China, Poland, and Romania