From the back of the booklet:
The Imperium is a place of mystery, and only Shai-Hulud truly understands the shifting tides of the desert sand. Protect your secrets with the official Dune: Adventures in the Imperium Gamemaster's Screen, a high-quality multi-panel portrait format screen that features plenty of content to control the greatest power in the universe.
This four-panel decorated screen includes a 32-page booklet offering all manner of gamemaster support. The perfect way to build your story and perhaps even your legacy on the dunes of Arrakis.
The Gamemaster's Toolkit contains:
A four panel Gamemaster's Screen featuring a stunning map of Arrakis.
Reference tables and key rules on the inside of the screen for instant access during play.
32-page Gamemaster booklet containing tools and advice on creating and running a Dune: Adventures in the Imperium campaign.
A host of adventure hooks, intrigues and settings to enhance your adventures on Arrakis.