How do you celebrate 40 years in the ad biz? For GSD&M’s 40th anniversary, we decided to declare the 40 Best Things We Ever Did. The ads and the people, the antics and the legends, all the little things that could only happen here. Our designers and art directors were given complete creative freedom, and in return they gave us a series of 40 posters that tell the story of who we are better than any manifesto ever could.

Check out the full stories behind the poster series here: http://40best.gsdm.com.

Here’s a gallery of what we created: