The wrongly written or mispronounced character, a generic name of wrongly written character and misused character, is known as a common and obstinate problem in students' learning. This book compiles the characters that are easy to be wrongly written and used and is divided into three parts, that is, wrongly written characters with similar pronunciation, wrongly written characters with similar form as well as characters with wrong written radical or components. This book gives the paraphrasing, sentence - making and discrimination of each character with corresponding exercises. Students are expected to write less or no wrong characters through the reading and practice. This whole book consists of four volumes and is oriented to students from Grade 1 in primary school to junior high school.