◆ Product Details This is "Mathematics Olympics 2018 - 2022" published by Nihon Hyoronsha. It is the official problem collection containing the problems and solutions of the International Mathematical Olympiad (IMO) from 2018 to 2022. Supervised by the Public Interest Incorporated Foundation, the Mathematics Olympiad Foundation, it has highly reliable content. Su-Ori (Mathematics Olympics) ◆ Features - Complete collection of 5 years' worth of IMO main competition problems - Detailed explanations and alternative solutions for each problem - Ideal for mathematics contest preparation and entrance exams for difficult universities - Officially certified problem collection by the Mathematics Olympiad Foundation ◆ Product Condition There are some minor scratches on the cover, but there are no page folds or writing, and it is in relatively good condition. This is a recommended book for students taking the Mathematics Olympiad and those who love mathematics.