# What Are Collections?

Collections are groups of NFTs that are controlled by the same smart contract. 

Before creating a collection, please take note of the following:

* NFTs within the same collection are controlled by the same contract.
* The NFTs within a collection can be different.
* You cannot delete the collection in which an NFT has been minted. 

Here is how a collection will look like once it is created:

<figure><img src="/files/c2Fv3WPYMdenTW2bDDTQ" alt=""><figcaption></figcaption></figure>


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