---
url: /at4j/essential/logging.md
---
# Logging

AT4J uses the [SLF4J](http://www.slf4j.org/) logging facade. This allows you to use your favorite logging framework with
AT4J. By default, AT4J uses the `org.slf4j.Logger` interface to log messages.

> \[!WARNING]
> TODO: Add more information about logging in AT4J.