This book constitutes the refereed proceedings of the 7th International Conference on Intelligent Tutoring Systems, ITS 2004, held in Maceió, Alagoas, Brazil in August/September 2004. The 73 revised full papers and 39 poster papers presented together with abstracts of invited talks, panels, and workshops were carefully reviewed and selected from over 180 submissions. The papers are organized in topical sections on adaptive testing, affect, architectures for ITS, authoring systems, cognitive modeling, collaborative learning, natural language dialogue and discourse, evaluation, machine learning in ITS, pedagogical agents, student modeling, and teaching and learning strategies.