The Book of Abstracts as well as the Final Program from the 3rd International Top-Down Proteomics Symposium is now available. The meeting held August 26-28, 2025 in Hamburg Germany was hosted by the University of Hamburg. Over 200 experts and researchers gathered to present and discuss the the latest scientific advances, technological developments, and methodological innovations in top-down proteomics. The Book of Abstracts is available at the link at the right, and the Final Program is below.