Yes or no? Race is on for Scotland's undecided voters.

On Monday, Scotland's pro-independence First Minister Alex Salmond and Alistair Darling, leader of the 'No' campaign, will face off in their final televised debate between the country's Sept. 18 referendum.

By , Associated Press

Melanie Stetson Freeman/The Christian Science Monitor

Scotland's long debate over whether the country should become independent has proved a bonanza for printers of bumper stickers, posters, balloons and even umbrellas.