It is our great pleasure to welcome you to the 26th International Conference on Multimodal Interaction (ICMI 2024) in San Jose, Costa Rica. This is the first ICMI held in Latin America. ICMI is the premier international forum for human-centered multimodal interaction and social artificial intelligence (AI). Multimodal human-centered AI includes machine learning and computational techniques, such as representation learning, fusion, data and systems. The study of social interactions includes both human-human and human-machine interactions. A unique aspect of ICMI is its multidisciplinary nature which values both scientific discoveries and technical modeling of human interaction towards positive and societally beneficial applications. We are keen to showcase the recent advances in the field to the community and provide an inclusive forum to develop and exchange new ideas. To this end, a new initiative committee has been established to organize events for newcomers and facilitate inclusion. [...]@en