The term proximity was not born at the same time as the research on this topic, which we will discuss here. However the great academic success of this concept is now largely associated with that of the School of Proximity and the reputation acquired by its main contributors. This chapter proposes an analysis of the evolution of the School of Proximity, its constitution and the different phases of its development. The methodology used is based on the creation of a database of the publications produced by the main contributors of the School of Proximity and focusing on the notion of proximity. We study this evolution in particular through an analysis of co-authorship networks. The idea is to better understand how this school was formed, to identify the key periods and the key factors of evolution of the group and the concepts it carried. This work also proposes another reading, that of the evolution of the School of Proximity which, by its ambition, its development and its originality, forms a Knowledge Community (KC), bringing together researchers working to produce a new concept in the field of social sciences, particularly regional sciences.