- A folder is a Board with no Cards. It is essentially a place-holder under which you can nest related Boards.
- Your private Boards are Boards which only you can access.
- Another user’s private Board is a Board which you cannot access. You will only see this icon if you have access to a Board nested beneath another user’s private Board. You cannot open such a Board.
- A public Board is one which every user in the organization can access.
- A restricted public Board is one which only a set of specified users can access.