Shader Graph in Unity is a visual tool designed to simplify the process of creating shaders, which are essential mini-programs running on the GPU for rendering textures, lighting, and colors in digital media. Unlike traditional shader creation that requires coding, Shader Graph allows users to construct shaders by connecting nodes within a graphical interface, making it accessible to artists and non-specialist programmers. It supports various render pipelines like the Universal Render Pipeline (URP) and the High Definition Render Pipeline (HDRP), and its features include the ability to see instant feedback, create custom shader effects such as rim lighting and dissolving effects, and leverage reusable Sub Graphs to optimize workflows. Shader Graph's interface consists of components like the Blackboard for properties, the Main Preview for visualizing results, and the Master Stack for managing shader outputs. The tool also offers smart connections to prevent incompatible node links, access to documentation from within the interface, and the ability to generate code for nodes. The article guides users through creating a basic shader, discusses the differences between newer and older versions of Shader Graph, and provides additional resources for further exploration.