# Concepts

- [Queues](/doddle/concepts/queues.md)
- [Tasks](/doddle/concepts/tasks.md): Defining a task is a simple as annotating a method
- [Encryption](/doddle/concepts/encryption.md): Learn how to encrypt your job arguments
- [Middleware](/doddle/concepts/middleware.md)
- [Telemetry](/doddle/concepts/telemetry.md): Subscribe to telemetry events