I was trying to make a D&D campaign with some people and I dont know how to use it! Pls help meh

You create the campaign, and then copy the invite link and send it to your players. They follow the link and are given a choice to either bring an existing character into your campaign, or to create a new one in that campaign. If anyone in the group has a master tier subscription and enables content sharing, everyone in the group can share each others books that they purchased on this site.

I hope this was helpful.