Lambda Layers is a feature of AWS that allows for the sharing of code and data between different Lambda functions. This helps to reduce the amount of code that needs to be written and maintained as it can be used by multiple functions. It also helps developers keep their code more organized and efficient by allowing them to store common code in one area rather than needing to repeat it over multiple functions. Lambda Layers can contain libraries, custom runtimes, configuration files, and other application resources such as images or text files. These resources are available to all functions within the same AWS account or region without needing additional authentication steps. This makes it easy for distributed teams working on a single project or different departments working on individual components of a larger project to take advantage of shared common resources without needing access permission protocols.