PKPM STS steel structure design: From entry to proficiency (2nd edition), the main feature is 1, which unifies the general idea of steel structure selection and design. 2. Covers the main program modules in STS, and explains them in chapters according to the sequence of program menu, which is easy to understand. 3. The basic theory and general design process of STS steel structure design are expounded in detail. 4. Combine theory with actual combat, and explain through typical engineering examples to make it easier for readers to master. 5. In-depth analysis of design parameters and operation skills of various steel structures in STS environment. 6. Attach video demonstrations of various engineering examples, which can guide students synchronously and facilitate self-study. Basic theory perspective, typical engineering examples, explanation of operation methods and skills, reasonable design parameters, analysis and introduction of video-guided synchronous actual combat drills.