Sharing folders with other people enables you both to view and edit all the files in that folder. It’s great for collaboration, and saves emailing files back and forth.
To get started, click Sharing on the left-hand side of dropbox.com.
Then click ‘New Shared Folder’ at the top right.
You can then create a new folder or choose an existing one, and enter the email addresses of the people you’d like to share it with.