A non-exhaustive list of things I've designed or contributed significantly to designing:

— The BESTSECRET online shop

— The BESTSECRET design system

— A UX design & research strategy for BESTSECRET

— The UX design & research team at BESTSECRET

— A new logo for VfL 1901 e.V. Wehbach sports club

— The logo for UX consultancy Jagow Speicher

— A nudging concept for reducing returns in e-commerce (Smart Green Nudging)

— This website

— The C&A online shop

— A UX strategy for C&A

— The UX team at C&A

— A new prototyping method for AR/VR experiences (360theater)

— An analytics toolkit for mixed reality applications (MRAT)

— A tool for remote collaboration using 360° video (360Anywhere)

— A framework for cross-device AR applications (XD-AR)

— A tool for crowdsourced gesture recognition (GestureWiz)

— The HoloBuilder website & SaaS platform

— The HoloBuilder brand book

— BlueKiwi, a semantic search engine developed by Unister GmbH

— A toolkit to automatically predict and optimize the usability of search engines (SIO, my Ph.D. thesis)

— A diagnostic usability questionnaire (Inuit)

— A tool for making websites mobile-ready based on user interactions (W3Touch, my Master's thesis)

— A tool for crowdsourcing adaptive website layouts (CrowdAdapt)

— A personal learning environment based on Google Wave (my Bachelor's thesis)

— Some early 2000s websites (one of which is still online)