The book has a good intro to their capabilities: https://doc.rust-lang.org/stable/book/ch19-06-macros.html https://doc.rust-lang.org/stable/book/ch19-06-macros.

The book has a good intro to their capabilities: https://doc.rust-lang.org/stable/book/ch19-06-macros.html https://doc.rust-lang.org/stable/book/ch19-06-macros.html There are blog posts exploring some of the use cases for them, but it depends a lot on what you want to do.