Imagine walking into your favourite coffee shop and the barista already knows your order, greets you by name, and suggests a new pastry you might like based on your past choices. That little moment of recognition makes you feel valued. Now imagine doing that for millions of customers all at once—that’s what AI‑powered personalization does for modern marketing. In this chapter, we’ll see how smart algorithms tailor every part of the customer journey. They turn casual visitors into loyal fans.