# Guides

Core concepts and recipes for using TMDBFusion.

* [**Authentication**](authentication.md): Learn how to authenticate with API Keys and Read Access Tokens.
* [**Pagination**](pagination.md): Master the art of iterating over large datasets synchronously and asynchronously.
* [**Async vs Sync**](async_vs_sync.md): Understand when to use `TMDBClient` vs `AsyncTMDBClient`.
* [**Working with Images**](images.md): Generate full URLs for posters, backdrops, and profiles.
