Zhang Xiaolan is a Chinese author about whom limited public information is currently available. She is known to readers mainly through her textbook Electrical Machinery (4th Edition), the only work by her recorded in this database. The book falls under industrial technology and centers on electrical machinery, a foundational area of electrical engineering; it generally covers the basic principles, structures, operating characteristics, and analytical methods of electric machines, serving university courses in related majors as well as the basic training of engineering technicians. As the named author of this textbook, Zhang Xiaolan focuses on conveying knowledge and supporting teaching, with an emphasis on clear concepts and a coherent structure that helps readers grasp the key points of electrical machinery step by step. Although details of her education, positions, and research experience are not sufficiently documented, the fact that the book has reached a fourth edition suggests it has been revised and refined over time and has a certain base of use in relevant courses.