Beauty surrounds us in many forms every day. We aim to investigate what type of objects frequently elicit experiences of beauty in everyday life, what these experiences feel like and how they differ depending on individual differences (e.g., art expertise). To this end, we will use experience sampling (ESM) asking participants to report on beautiful experiences in their everyday life for 1-2 weeks. We will use a mixed random (~ 15 times per day) and event-contingent sampling schedule through participants’ smartphones, prompting them to first take a photo or describe what they are currently seeing and to then rate its beauty. Lastly, valence and arousal measures will give insight into the quality and immediate emotional effect of everyday life encounters with beauty. Information on demographics and art expertise (VAIAK, Specker et al., 2020) will be collected in a pre-ESM lab session. We expect non-manmade objects to elicit aesthetic episodes more frequently than man-made objects. Further, we expect this to be influenced by individual differences such as art expertise. How frequently different object categories evoke aesthetic episodes and how this is related to art expertise will be teste using chi²-tests. Further, multi-level modelling will be employed to explore how the quality of aesthetic experiences relates to different object categories and potentially different levels of art expertise.