Analytics in advertising transforms marketing from guesswork into a data-driven science, empowering advertisers to understand customer behavior, optimize ad spend, and demonstrate campaign value through clear, measurable insights. The shift towards analytical strategies is underscored by the anticipated growth of the ad analytics market from USD 6.04 billion in 2025 to USD 20.33 billion by 2035. By focusing on key metrics across brand awareness, audience engagement, conversion, and profitability, advertisers can move beyond simple impressions and clicks to gain a comprehensive understanding of their campaigns' effectiveness. With the integration of brand metrics and creative analytics, advertisers can fine-tune their strategies, ensuring that creative elements resonate with audiences and contribute to long-term business success. The importance of building a robust data infrastructure, embracing first-party data, and adapting to a cookieless future is emphasized as essential steps for maintaining a competitive edge in the evolving digital landscape.