This two-volume set LNCS 15179-15180 constitutes the refereed proceedings of the 18th International Conference on Algorithmic Aspects in Information and Management, AAIM 2024, which took place virtually during September 21-23, 2024. The 45 full papers  presented in these two volumes were carefully reviewed and selected from 76 submissions. The papers are organized in the following topical sections:Part I: Optimization and applications; submodularity, management and others,Part II: Graphs and networks; quantum and others.