Go is a statically typed, compiled programming language designed for type safety and concurrency, making it suitable for systems programming and low-level networking. It features a robust type system with built-in types such as Boolean, string, and numeric types, along with composite types like arrays, slices, structs, and interfaces. Structs in Go are collections of named fields that allow for creating custom data types, while interfaces define sets of method signatures that types can implement, enabling polymorphism. The article explores structs and interfaces in detail, illustrating how structs can be initialized, nested, and embedded, and how interfaces facilitate code encapsulation and behavior sharing across different types. It also covers the concept of method sets, type assertions for converting interfaces to structs, and the introduction of Go modules for efficient package management. The Go Playground is recommended for running Go code, and the importance of composition over inheritance is emphasized in struct and interface design.