caption: The image shows a poster for the World Reklame-Kongress in Berlin, Germany in 1929. It features text and images of buildings, giving a glimpse into the history of the event. The poster is decorated with a variety of colors, including blues, greens, and yellows, and the text is written in a bold, black font. The buildings in the background are tall and imposing, with a few trees and shrubs scattered throughout. The sky is a deep blue, with white clouds scattered throughout, and a few birds flying in the distance.