(The courses cover Logic Improvement courses, experience sharing courses, practical thinking courses, design skills courses, professional improvement courses and operation demonstration courses, with a total of 34 courses in 6 categories. Whether you are a PPT beginner or a high-end designer, whether you are a newcomer in the workplace or a startup boss, this is a universal ppt book for you. Suitable for white-collar workers, college students, interns, designers, training lecturers, sales representatives, entrepreneurs, government personnel and data analysts!)