This is an awesome advert created by BBDO. The idea is simple....yellow pages as the best directory still to find every business you need. So they used yellow, and only yellow to find every business and service needed to build a tree house restaurant proving yellow pages really does have every resource you need and that as a business it pays to be in the yellow pages.
And they built it for real, catching everyone's attention and only bringing further attention to the advert and project.
And the results were amazing for yellow pages, increasing usage by almost 10%, proving how a simple idea executed brilliantly can be extremely effective.