diff --git a/docs-website/sidebars.js b/docs-website/sidebars.js
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--- a/docs-website/sidebars.js
+++ b/docs-website/sidebars.js
@@ -195,7 +195,7 @@ module.exports = {
         ],
       },
     ],
-    "Usage Guides": ["docs/policies"],
+    "Usage Guides": ["docs/policies", "docs/domains"],
     "Developer Guides": [
       // TODO: the titles of these should not be in question form in the sidebar
       "docs/developers",
diff --git a/docs/domains.md b/docs/domains.md
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+# Domains Guide
+
+## What is a Domain? 
+
+Starting in version `0.8.25`, DataHub supports grouping data assets into logical collections called **Domains**. Domains are curated, top-level
+folders or categories where related assets can be explicitly grouped. Management of Domains can be centralized, or distributed out
+to Domain owners. Currently, an asset can belong to only one Domain at a time. 
+
+### Tags vs. Glossary Terms vs. Domains
+
+DataHub supports Tags, Glossary Terms, & Domains as distinct types of Metadata that are suited for specific purposes:
+
+- **Tags**: Informal, loosely controlled labels that serve as a tool for search & discovery. Assets may have multiple tags. No formal, central management.
+- **Glossary Terms**: A controlled vocabulary, with optional hierarchy. Terms are typically used to standardize types of leaf-level attributes (i.e. schema fields) for governance. E.g. (EMAIL_PLAINTEXT)
+- **Domains**: A set of top-level categories. Usually aligned to business units / disciplines to which the assets are most relevant. Central or distributed management. Single Domain assignment per data asset.
+
+
+## Creating a Domain
+
+To create a Domain, first navigate to the **Domains** tab in the top-right menu of DataHub. Users must have the Platform Privilege
+called `Manage Domains` to view this tab, which can be granted by creating a new Platform [Policy](./policies.md).
+
+![](./imgs/domains-tab.png)
+
+Once you're on the Domains page, you'll see a list of all the Domains that have been created on DataHub. Additionally, you can
+view the number of entities inside each Domain. 
+
+![](./imgs/list-domains.png)
+
+To create a new Domain, click '+ New Domain'.
+
+![](./imgs/create-domain.png)
+
+Inside the form, you can choose a name for your name. Most often, this will align with your business units or groups, for example
+'Platform Engineering' or 'Social Marketing'. You can also add an optional description. Don't worry, this can be changed later.
+
+#### Advanced: Setting a Custom Domain id
+
+Click on 'Advanced' to show the option to set a custom Domain id. The Domain id determines what will appear in the DataHub 'urn' (primary key)
+for the Domain. This option is useful if you intend to refer to Domains by a common name inside your code, or you want the primary
+key to be human-readable. Proceed with caution: once you select a custom id, it cannot be easily changed. 
+
+![](./imgs/set-domain-id.png)
+
+By default, you don't need to worry about this. DataHub will auto-generate an unique Domain id for you. 
+
+Once you've chosen a name and a description, click 'Create' to create the new Domain. 
+
+
+## Assigning an Asset to a Domain 
+
+To assign an asset to a Domain, simply navigate to the asset's profile page. At the bottom left-side menu bar, you'll 
+see a 'Domain' section. Click 'Set Domain', and then search for the Domain you'd like to add to. When you're done, click 'Add'.
+
+![](./imgs/set-domain.png)
+
+To remove an asset from a Domain, click the 'x' icon on the Domain tag. 
+
+> Notice: Adding or removing an asset from a Domain requires the `Edit Domain` Metadata Privilege, which can be granted
+> by a [Policy](./policies.md).
+
+
+## Searching by Domain
+
+Once you've created a Domain, you can use the search bar to find it.
+
+![](./imgs/search-domain.png)
+
+Clicking on the search result will take you to the Domain's profile, where you
+can edit its description, add / remove owners, and view the assets inside the Domain. 
+
+![](./imgs/domain-entities.png)
+
+Once you've added assets to a Domain, you can filter search results to limit to those Assets
+within a particular Domain using the left-side search filters. 
+
+![](./imgs/search-by-domain.png)
+
+On the homepage, you'll also find a list of the most popular Domains in your organization.
+
+![](./imgs/browse-domains.png)
+
+
+## Domains API
+
+Domains can be managed via the [GraphQL API](https://datahubproject.io/docs/api/graphql/overview/). Below you'll find the relevant Queries & Mutations
+to achieve this. 
+
+- [domain](https://datahubproject.io/docs/graphql/queries#domain) - Fetch a Domain's details by Urn. 
+- [listDomains](https://datahubproject.io/docs/graphql/queries#listdomains) - List all Domains inside your DataHub instance. 
+- [createDomain](https://datahubproject.io/docs/graphql/mutations#createdomain) - Create a new Domain.
+- [setDomain](https://datahubproject.io/docs/graphql/mutations#setdomain) - Add an entity to a Domain
+- [unsetDomain](https://datahubproject.io/docs/graphql/mutations#unsetdomain) - Remove an entity from a Domain.
+
+### Examples
+
+**Creating a Domain**
+
+```graphql
+mutation createDomain {
+  createDomain(input: { name: "My New Domain", description: "An optional description" })
+}
+```
+
+This query will return an `urn` which you can use to fetch the Domain details. 
+
+**Fetching a Domain by Urn**
+
+```graphql
+query getDomain {
+  domain(urn: "urn:li:domain:engineering") {
+    urn
+    properties {
+        name 
+        description
+    }
+    entities {
+			total
+    }
+  }
+}
+```
+
+**Adding a Dataset to a Domain**
+
+```graphql
+mutation setDomain {
+  setDomain(entityUrn: "urn:li:dataset:(urn:li:dataPlatform:hdfs,SampleHdfsDataset,PROD)", domainUrn: "urn:li:domain:engineering")
+}
+```
+
+> Pro Tip! You can try out the sample queries by visiting `<your-datahub-url>/api/graphiql`.
+
+## Demo
+
+Click [here](https://www.loom.com/share/72b3bcc2729b4df0982fa63ae3a8cb21) to see a full demo of the Domains feature. 
+
+## Feedback / Questions / Concerns
+
+We want to hear from you! For any inquiries, including Feedback, Questions, or Concerns, reach out on Slack!
\ No newline at end of file
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