Hello, I want to ask which is better, the secret book of learning and thinking or the starting line of Olympic mathematics? The starting line of Olympic Mathematics is good, because the learning of Olympic Mathematics is different from the learning of mathematics in the classroom. Children are taught to think with the thinking of Olympic Mathematics, but the difficulty of the topic can be connected with classroom learning, and it will not be too difficult, which is very suitable for children to do top-notch work in school. It is not difficult to learn and think about cheats, which is more suitable for children with top mathematics. In contrast, it is better to start with the Olympic Games.