this book constitutes the refereed proceedings of the 11th international conference on hybrid systems: computation and control, hscc 2008, held in st. louis, mo, usa, in april 2008. the 42 revised full papers and 20 revised short papers presented were carefully reviewed and selected from numerous submissions for inclusion in the book. the papers focus on research in embedded, reactive systems involving the interplay between symbolic/switching and continuous dynamical behaviors and feature the latest developments of applications and theoretical advancements in the design, analysis, control, optimization, and implementation of hybrid systems, with particular attention to embedded and networked control systems.