Amazon provides targeted advertising capabilities to reach customers across various stages of the shopping journey. They leverage billions of data points from customer behaviors to segment audiences based on demographics, lifestyles, in-market interests, contextual details, lookalikes, and remarketing. Advertisers can match their own customer lists to Amazon data to identify lookalike audiences. Case studies show Advertiser Audiences targeting can increase key metrics like CTR, DPVR, purchase rates, and ROAS compared to average campaign performance.