This tutorial teaches how to develop a simple NFT marketplace using the polkadot-sdk.
https://www.shawntabrizi.com/substrate-collectables-workshop/
The goal of this tutorial is to teach by experience various entry level concepts around Polkadot Pallet development.
The tutorial is designed to be completed by anyone with basic familiarity with Rust, and little to no familiarity with the Polkadot SDK.
If you do not feel comfortable with the level of Rust used in this tutorial, we recommend you first check out the rust-state-machine tutorial.