We love great marketing campaigns, and Christmas is arguably the most challenging time of year for brand marketing, with everyone cramming in to get a slice of the turkey. Some brands have become synonymous with Christmas, massively increased sales with clever campaigns and created adverts so popular that their release has become a highly-anticipated event. In the countdown to Christmas, we’re taking a look at the 12 best B2B and B2C Christmas campaigns and why they worked so well.