Steel design or structural steel design is a sub discipline of structural engineering that is used to design steel structures. Steel is an alloy which is made up of iron and carbon. The tensile strength of steel is high which makes it hard and strong. Designing and construction of steel structures depend on chemical composition and mechanical properties of steel. Two commonly used methods for designing steel structures are allowable strength design method (ASD) and load and resistance factor design method (LRFD). Steel is widely used in automobile industry, infrastructure business, construction of roads, small and heavy instruments and equipments. This book unravels the recent studies in the field of steel design and its applications. It unfolds the innovative aspects of steel design which will be crucial for the progress of this field in the future. This book attempts to assist those with a goal of delving into this field of study.