# Collections > Named groupings of assets inside a library — create, update, and manage membership. - HTML: [collections.html](collections.html) - Covered by: [llms.txt](../llms.txt) ## Types - [Collection](../type/Collection.md) - [CollectionItems](../type/CollectionItems.md) ## Mutations - [addCollectionAssets](../mutation/addCollectionAssets.md) - [createCollection](../mutation/createCollection.md) - [deleteCollection](../mutation/deleteCollection.md) - [removeCollectionAssets](../mutation/removeCollectionAssets.md) - [setCollectionAssets](../mutation/setCollectionAssets.md) - [updateCollection](../mutation/updateCollection.md) ## Inputs - [AddCollectionAssetsInput](../input/AddCollectionAssetsInput.md) - [CreateCollectionInput](../input/CreateCollectionInput.md) - [DeleteCollectionInput](../input/DeleteCollectionInput.md) - [LibraryCollectionQueryInput](../input/LibraryCollectionQueryInput.md) - [RemoveCollectionAssetsInput](../input/RemoveCollectionAssetsInput.md) - [SetCollectionAssetsInput](../input/SetCollectionAssetsInput.md) - [UpdateCollectionDataInput](../input/UpdateCollectionDataInput.md) - [UpdateCollectionInput](../input/UpdateCollectionInput.md) ## Return types - [AddCollectionAssets](../type/AddCollectionAssets.md) - [CreateCollection](../type/CreateCollection.md) - [DeleteCollection](../type/DeleteCollection.md) - [RemoveCollectionAssets](../type/RemoveCollectionAssets.md) - [SetCollectionAssets](../type/SetCollectionAssets.md) - [UpdateCollection](../type/UpdateCollection.md)