The AWS D1.8/D1.8M:2025 Structural Welding Code—Seismic Supplement is a textbook authored by the American Welding Society. Published in 2025, this paperback book focuses on the subject area of structural welding, with a specific emphasis on seismic applications. The publication is written in English and serves as a valuable resource for those interested in the historical and technical aspects of welding code regulations.