类别的理论和应用（ISSN 1201 - 561X）是关于类别理论，分类方法及其在数学科学中的应用的全电子，评论期刊。 该期刊的编辑政策提供了详细信息。编辑委员会由其执行编辑Robert Rosebrugh，副主编Michael Barr和指导委员会协调控制期刊。 电子档案由期刊和各种镜像站点维护。
Theory and Applications of Categories (ISSN 1201 - 561X) is the all-electronic, refereed journal on Category Theory, categorical methods and their applications in the mathematical sciences. The editorial policy of the journal provides details.The Editorial Board controls the journal with coordination by its Managing Editor Robert Rosebrugh, Associate Managing Editor Michael Barr, and Steering Committee. Electronic archives are maintained by the journal and at various mirror sites.