This study deals with data visualization for media planning. Media planning database is a collection of heterogeneous content (image/video/graphics, text, data analytics, logical expressions, …) to be aggregated, managed, and displayed together. The main contribution is the multi-layer visualization architecture that allows any type of visualization element to be created by its most appropriate libraries. Such visualization ensures spatio-temporal synchronization of displayed content, as well as the proper evolution with the user interaction. The illustrations are provided on two real (yet anonymized) media plans and show how a complex, 7 steps interaction workflow with the media plan can be dealt with.