The journal Theory and Applications of Categories will disseminate articles that significantly advance the study of categorical algebra or methods, or that make significant new contributions to mathematical science using categorical methods. The scope of the journal includes: all areas of pure category theory, including higher dimensional categories; applications of category theory to algebra, geometry and topology and other areas of mathematics; applications of category theory to computer science, physics and other mathematical sciences; contributions to scientific knowledge that make use of categorical methods.

《Theory And Applications Of Categories》是一本由Mount Allison University出版商出版的专业数学期刊，该刊创刊于1995年，刊期-，该刊已被国际权威数据库SCIE收录。在中科院最新升级版分区表中，该刊分区信息为大类学科：数学 3区，小类学科：数学 3区；应用数学 3区；在JCR（Journal Citation Reports）分区等级为Q4。该刊发文范围涵盖数学等领域，旨在及时、准确、全面地报道国内外数学工作者在该领域取得的最新研究成果、工作进展及学术动态、技术革新等，促进学术交流，鼓励学术创新。2021年影响因子为0.643，