Dive into the world of XPS data analysis with a fun and interactive tutorial! Learn to master peak-fitting techniques through active participation and collaboration. We’ll begin with simple spectra and progress to more complex analyses. Using the free AAnalyzer® software, renowned for its advanced background tools, you’ll discover how to streamline the peak-fitting process. Participants will share their proposed fits via the XPSOasis platform, enabling real-time comparison and discussion with fellow attendees. The tutorial will focus on state-of-the-art fitting techniques, ensuring that all fitting parameters hold clear physical meaning.”