Graphs are uploaded in gml format, which can be easily imported by networkx, gephi and neo4j. The undirected graphs are constructed from openalex database (last update Dic 2022), where nodes are authors and edges specify whether or not two nodes coauthored at least one paper. We avoided papers with more than 10 authors since they are very scarse and could affect the posterior analysis of the networks. The attributes of the nodes consist of the list of used words for each author and its frequency and all the concepts (of every level) the papers of the author are labeld. The attributes of the edges only contains the number of papers published between two authors. For more information about openalex concepts, visit https://docs.openalex.org/api-entities/concepts