This document summarizes 5 winning campaigns from Cannes 2023 that effectively used personalization. 1) Spotify's Wrapped personalizes music listening summaries for each user based on their listening data on the platform. 2) Congresso em Foco's Transparency Card sends real-time spending data on politicians to citizens via push notifications, increasing transparency around public funds. 3) Chipotle matched customers who ordered the same meal in different cities to show orders are not unique, generating $4.6M in revenue. 4) British Airways personalized travel reasons beyond "business" and "leisure" based on contextual data to evoke different emotions around travel. 5) Mondelez