This book, the revised edition of ?Useful Chinese Characters for Learners of Korean,? has been designed to allow beginner and intermediate Korean-language learners to expand their Korean vocabulary in diverse ways by learning Hanja. Each chapter includes 10 to 12 Hanja, and Hanja-based vocabulary that is frequently seen in intermediate Korean is presented along with example sentences in order to increase learning efficiency.Of note, in the revised edition, the target Hanja-based vocabulary and example sentences in each chapter have been recorded by professional voice actors so that they can be instantly checked via QR code, and the formation of the intermediate vocabulary in particular can be naturally remembered through these sound clips. Additionally, a supplementary handwriting workbook has been included so that learners can have sufficient practice in writing the beginner and intermediate target vocabulary learned in the main text. By repeatedly listening to and writing the Hanja-based vocabulary in context, learners can naturally come to understand and memorize various Hanja-based words.