The book selects the commonly used meaning of 900 primary Chinese characters and introduces 2245 commonly used words one by one. The short essays are collected to cultivate the primary Chinese characters reading ability and basic reading comprehension ability of learners. The book helps readers to finish training the basic skills of learning to read by virtue of a step-by-step route advancing from learning Chinese characters to learning words and phrases to reading short essays. In the form of writing while reading, and speaking while listening, the book allows the mutual promotion, common progress and win-win of Chinese characters study and mandarin study.