The Manual of Steel Construction Allowable Stress Design 9th Edition by the American Institute of Steel Construction is a comprehensive resource for engineers and construction professionals. Published in 1989, this hardcover textbook offers detailed information on the design of steel structures, focusing on allowable stress design principles. With a specific focus on construction, this manual provides essential guidance for ensuring the strength and safety of steel projects in the United States. It is a valuable tool for those involved in the field of steel construction.