Welcome to Biography (the Most Influential Persons in the World History) series. In this book, we will discover the life of Kim Jong-un () is the Supreme Leader () of North Korea ().

This Biography series is dedicated to helping Mandarin Chinese learners improve Chinese reading skills. In this series, we will discover the lives of the famous world celebrities from different countries. These people, such as Nelson Mandela (), Albert Einstein (), Plato (), etc. have deeply influenced humanity while leaving a unique impact on the masses. Each book will introduce a famous Chinese personality whose contributions were immense to shape China's future. The books in Biography series contain numerous lessons in Mandarin Chinese. We start with a brief introduction of the book in the preface (), a detailed introduction to the person (in English), and continues to dig his life and relevant issues. Each book contains 6 to 10 chapters made of simple Chinese sentences. For the readers' convenience, a comprehensive list of words (vocabulary) has been provided at the beginning of each chapter. The pinyin for the Chinese text is provided after the main text. Further, to enforce a deeper learning, the English interpretation of the Chinese text has been purposely excluded from the books. This would help the readers think deeply about the contents the way native Chinese do. In order to help the students of Mandarin Chinese remember important characters, words, long words, idioms, etc., these entities have been purposely repeated throughout the book, and across the books in the series. Taken together, the books in Biography series will tremendously help readers improve their Chinese reading skills.