The existence of the World as a geographical object is argued in many texts that are invitations to analyze it. In practice what is analyzed is globalization, most often in a thematic way or in focusing the researches on a small piece of space. Some authors assess that the World poses new questions that cannot be answered with former approaches. However some of the concepts and methods developed by geographers in order to analyze more conventional scales remain operational, including the concept of "territory". Consider the World as a territory imply to admit that it is ordinary geographical scale shaped by material and ideal phenomena but also that the World and the individual are relevant scales for the analysis. This volume tests the concept of "World-territory". It proposes an analysis based on the methods of regionalization applied to the mental representations and practices of world space. Both are varied and they combined to produce a rich and complex vision of the World that gives it its territorial dimension. Undeniably, regionalization methods are useful to know the World and to reveal some of its spatial structures. However they did not allow catching some representations and practices that really take place at the World level and cannot be understand with areal categorizations of space. Furthermore conventional regionalization methods produce frozen and rigid objects while representations and practices of the World draw fuzzy spaces with patterns moving in space and time.
