If you want to purchase a world map for your reference or collection, buy laminated world maps. One of the most detailed and accurate maps include the laminated and enlarged National Geographic Classic World Map. This map features the Winkel Tripel projection, which allows you to see the round earth on a flat paper with the least distortion ever. In this map, the oceans are colored blue and the countries feature colored borders in white background. There are also inset maps which show the vegetation, population density and land use. The lamination of the map provides more protection and allows you to use a dry-erase marker.
Another laminated map is the Hammond Deluxe Laminated Political Reference World Map. Just like the above mentioned map, this map allows you to use a dry erase or china marker. It also features flag borders and plastic strips at the top and bottom portion of the map. The plastic strips give protection to the map by preventing the curling of the map. More importantly, there are color bands that are able to show the different political boundaries. You can get the National Geographic Map at a low cost of $11 while you can have the Hammond Deluxe Map at a very reasonable price of $16.