To succeed in the International Mathematics Competition for University Students, it's crucial to assess your problem-solving skills before selecting study materials. A comprehensive list of recommended textbooks includes titles across various mathematical disciplines. For algebra, notable mentions are "101 Problems in Algebra" by Titu Andreescu and "Intermediate Algebra" by Richard Rusczyk. In analysis, "Counterexamples in Analysis" and "The Hitchhiker's Guide to Calculus" are highlighted. Combinatorics resources include "102 Combinatorial Problems" and "A Path to Combinatorics for Undergraduates." Geometry enthusiasts can explore "Challenging Problems in Geometry" and "Geometry Revisited." Additionally, general problem-solving strategies can be refined through "The Art of Problem Solving" series and "How to Solve It" by George Polya. Ultimately, seeking guidance from experienced peers or professors is recommended for personalized advice on starting your preparation effectively.