> For the complete documentation index, see [llms.txt](https://treves-studios.gitbook.io/bm-learning-center/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://treves-studios.gitbook.io/bm-learning-center/marketplace/marketplace-overview.md).

# Marketplace Overview

**BirthMark is a curated, primary sales marketplace for tattoo NFTs.** When artists mint their tattoos on the platform, they make their first sale on BirthMark marketplace. Once a sale happens, tattoo NFT is transferred to collector’s wallet and can be traded on secondary marketplaces.

<figure><img src="https://1480526110-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYyFCj6EPwkJhogUskDnu%2Fuploads%2FrcDhcaVyGGjllZbmclql%2FGallery.jpg?alt=media&amp;token=32e5adbd-2b7d-47c7-a731-de9e7732022b" alt="" width="563"><figcaption><p>BirthMark Tattoo Gallery</p></figcaption></figure>

BirthMark marketplace can facilitate sales in three ways:<br>

* &#x20;**Listing for a fixed price**
* **Making an offer**
* **Auctions**