The Product Owner I am working with at Monarch has recently tidied up the backlog board and made it nice and easy to understand.
Here is a picture:
The layout is nice and simple and becomes a very valuable and important information radiator for the team. It also advocates the Scrum principle of “transparency”. Anyone can see where an item of work on the backlog is and its current status (on hold, requires estimation, not ready for dev and ready for dev).