The e-Methodology 2026 Book of Abstracts presents interdisciplinary contributions from the 11th International Academic Conference “e-methodology 2026,” focusing on digital transformation, public health, education, social sciences, artificial intelligence, online research methods, digital health literacy, social media analysis, and methodological innovation. The volume highlights both opportunities and risks of digital technologies in research and practice, including misinformation, ethics, privacy, AI-supported analysis, and health communication.