# Core Concepts

- [Translation API](/transloco/core-concepts/translation-api.md): A list of the TranslocoService API methods and their usages
- [Translation in the Template](/transloco/core-concepts/translation-in-the-template.md)
- [Language API](/transloco/core-concepts/language-api.md): A list of TranslocoService language-related API methods and their usages
- [Signals](/transloco/core-concepts/signals.md): A list of the Transloco Signal-based API methods and their usages