This document summarizes Rhian Ryan's presentation about making sense of data to optimize a proton therapy center's paid search campaign. Key points include: 1) The campaign goals were to build brand awareness and generate online leads in the UK and EU markets through paid search. 2) Conversion rate optimization testing identified elements like page layout, content, and forms that improved lead submission. 3) Additional data analysis found relationships between paid keyword interactions and video/image events that influenced conversions. 4) Combining data from multiple platforms and weighting keywords based on conversion rates led to optimized bidding that increased performance.