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% Structs
<small>There is a new edition of the book and this is an old link.</small>
> A _struct_ is a custom data type that lets us name and package together multiple related values that make up a meaningful group.
```rust
struct User {
username: String,
email: String,
sign_in_count: u64,
active: bool,
}
```
---
Here are the relevant sections in the new and old books:
* **[In second edition: Ch 5.00 Structs][2]**
* <small>[In the first edition: Ch 3.12 Structs][1]</small>
[1]: https://doc.rust-lang.org/1.30.0/book/first-edition/structs.html
[2]: ch05-00-structs.html