Chinese Children’s Encyclopedia of Mathematics is a full-colored encyclopedia on mathematics, targeting at children between 6 and 15. With the background in children’s psychological development and cognitive habits, this encyclopedia taps into what children regard as familiar, bringing games together with mathematic thinking and practice. Beginning from the history and definition of math, the encyclopedia opens the door to math for children by helping them know, understand, grasp, practice, and master it. The book is rich in content, which covers more than 300 knowledge points and over 500 vivid and interesting illustrations in more than 50 themes and includes famous mathematical questions such as the Fibonacci sequence, Seven Bridges of Königsberg, Chicken and Rabbit in the Same Cage, Brahmagupta's Problem and so on. The rich content of this book gives math an all-round demonstration, satisfying the curiosity of the kids. It also designed special sections such as Mathematics Kaleidoscope, Room Escape, Thinking Games, Timeline, including 16 room escape games, more than 20 thinking games, specially-selected mathematical propositions and case studies to expand children’s thinking and encourage them to ask questions.