BrandTruth provides market intelligence services through unique research approaches like stealth observation and natural elicitation. They have studied shopper behavior for many large brands across various retail channels. Some key case studies discussed include analyzing the performance of new Coke packaging initiatives, evaluating HP merchandising strategies, comparing Nike and Under Armour in the performance apparel category, and providing ongoing studies to help Columbia improve. The document outlines BrandTruth's methodology of collecting both quantitative and qualitative data on various factors that influence shopper capture and abandonment rates.