Every copyrighted work that someone makes should have royalties on it. But all returned to their respective makers. Some creations that are made for general consumption and provide useful information for all the people in them will usually make it available to anyone for free without royalty. An example is a large blank world map. Almost everyone needs it with different types of needs. Because they are general information and needed by many people, blank world maps are exempt from royalty.
One platform that is suitable for a large world map is posters. Because it is used to provide information to many people related to geography and a separate message to be conveyed, the large world map is suitable to be presented in it. An example of a poster type that is suitable for displaying blank world maps is Save Earth. When talking about the earth, the right image to represent it is world maps. Even when you don't go into detail, it still makes sense to be in the poster. Various versions, as well as various designs of blank world maps, have been done and shared by many creators.
How to use blank world maps for posters depends on the concept in the posters. It would be really weird if you made posters with blank world maps with no relevant information on them. To collaborate, you need design software that can unify writing and images such as Photoshop, Corel Draw, and others that are capable and have features to manage blank world maps. This feature will serve as a tool that can unify all the elements in the posters.
Creating a large world map is not easy. Even though they are called blank world maps, there are still some elements in the image that you need to make according to the details on the world maps with the content. Copying in perfect detail for the world map can still be done. There are many tools that can help you make it happen. In some types of paper, some are specially made to copy and paste world maps just by placing them on the original world maps. This requires focus and precision to make perfectly copying world maps.