# Concepts

The following concepts are used in this project:

| Topic                                                                                                          | Description                                |
| -------------------------------------------------------------------------------------------------------------- | ------------------------------------------ |
| [**Webhook**](/concepts/webhook.md)                                                                            | What is it a 'Webhook' and why I need it?  |
| [**Subscriptions**](https://github.com/deveel/deveel.webhooks/blob/main/docs/concepts/webhook-subscription.md) | How does a subscription to an event works? |
| [**Senders**](/concepts/webhook-sender.md)                                                                     | What is a sender of webooks?               |
| [**Receivers**](/concepts/webhook-sender.md)                                                                   | What is a receiver of webooks?             |
| **Notifications**                                                                                              | What is a notification of events?          |


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