Liu Aiyu: public information is limited, and at present only one work by this author is known, SPSS Data Analysis Tutorial. Judging from the title and the common category "exams," the book addresses the learning and exam-preparation needs associated with the statistical software SPSS and is a practical guide that is both instructional and tool-oriented. Tutorials of this kind usually center on step-by-step operations, case demonstrations, and interpretation of results, helping readers master basic skills such as data preparation, statistical analysis, and chart presentation. Liu Aiyu's writing style is therefore likely to be clear and well organized, with an emphasis on hands-on practice, making it easy for beginners to follow the exercises in order and useful for exam candidates reviewing and filling gaps. Because no reliable record of the author's life, education, or research direction is available, no speculation is offered here; based solely on the existing work, the contribution lies in organizing SPSS operations into followable learning materials for readers who need to take related exams or conduct basic data analysis.
