Should I have just one or multiple workspaces?

We suggest you keep one workspace until you need to do one of the following things, many of which will trigger/require the creation of a new workspace anyways:

• Collaborate with someone in Tana (requires you or the other to create a workspace and invite each other to)
• Import content from Roam, Logseq, Workflowy, or other (this automatically creates a new workspace for the purpose of the import)
• Create a holding space (separate from you private workspace with no "Allow access from.." for testing other people's templates and setups before you bring it in to your active workspaces)
• Creating a Tana Template (which means you want a clean, self-contained workspace setup so you know you're creating a template with no references pointing to other workspaces)

Source of FAQ: Tana Community Resource Hub