# Understanding Events & Entities

- [What is an Event](/snowplow-documentation/insights/understanding-events-and-entities/what-is-an-event.md)
- [What is an Entity](/snowplow-documentation/insights/understanding-events-and-entities/what-is-an-entity.md)
- [Out-of-the-box vs Self-describing Events and Entities](/snowplow-documentation/insights/understanding-events-and-entities/out-of-the-box-vs-self-describing-events-and-entities.md)
- [Understanding Schema](/snowplow-documentation/insights/understanding-events-and-entities/understanding-schema.md)
- [Tutorial: defining, tracking and querying your own custom event](/snowplow-documentation/insights/understanding-events-and-entities/tutorial-defining-tracking-and-querying-your-own-custom-event.md)
