# Packages, Modules and Crates

Projects should generally group related code/function together this increases code organization

packages can contain multiple binary codes/files or a library crate

very large projects should be done with interrelated packages that all update should be done using cargo workspaces

encapsulation is useful because you don't need to worry about its implementation
this is good for reusing code

rust has features for your code's organization, which parts are exposed, which details are private and what names are in each scope in the program

These features are known collectively as the ``module system`` they include
- [**Packages**](Packages.md): A feature of Cargo that allows you to build, test and share crates
- [**Crates**](Crates.md): A tree of modules that produces a library or an executable
- [**Modules** and **use**](Modules%20and%20Use.md): lets you control the organization, scope and privacy of paths
- **Paths**: A way of naming an item, such as a struct, function or module