Scottish independence: Who's behind the referendum campaigns?
17 April 2014 Last updated at 08:06 BST
The Scottish independence referendum takes place on Thursday, 18 September.
And the two sides of the campaign - pro-Union Better Together and pro-independence Yes Scotland - are working hard to win voter support at the ballot box.
But who runs them and what are they up to?
Here, in 60-ish seconds we answer the important questions.
- For everything you need to know about the Scottish independence referendum, go to our special site.
Production by Marc Ellison and Martin Currie