The Proceedings of the 10th International Symposium on Insect-Plant Relationships offer a comprehensive collection of research papers presented during the symposium held from July 4 to 10, 1998, in Oxford. This publication is the result of over 40 years of development in the field of insect-plant relationships and serves both as a showcase for current research and as a forum for the development of new, influential ideas. The included contributions are fully peer-reviewed and cover a wide range of topics, including the central neural and chemosensory foundations of host plant recognition, integrative studies on insect behavior, tritrophic interactions, and plant defense mechanisms. This collection is a valuable resource for students and researchers engaged in the complex interactions between insects and plants.