The Library layer in Web 3 refers to a collection of reusable code components and resources that developers utilize to expedite the development process of decentralized applications (dApps) and interact with blockchain networks. It encompasses a wide range of pre-built functions, modules, and resources that simplify the implementation of smart contracts and dApps on the blockchain. These resources assist both seasoned Web 3 experts and newcomers in harnessing the potential of blockchain technology, enabling them to create innovative decentralized solutions with greater efficiency and ease of use.