In an excerpt from his first book, “How to Build a Fashion Icon,” the image architect describes meeting the young client who would alter the course of his career.

In a suite at the Standard hotel in London, celebrity stylist Law Roach is giving me the inside track on one of his most viral looks. In February, client and friend Zendaya appeared at the premier of Dune: Part Two in a vintage Thierry Mugler robot outfit made from chrome and Plexiglas panels.

After these viral Dune moments, Zendaya and Law continued to cement their legacies as fashion icons on the Challengers press tour. From the sparkly green tennis dress that looked like a court to a white dress that seemingly took inspiration from a tennis net, these ensembles, like her Dune: Part 2 outfits were perfect.