Yaya Han is a cosplayer, designer and author with more than 25 years of activity in the fandom world. Yaya has made over 400 costumes, been featured in two US Network TV Shows and countless magazines, books, newspapers and online media outlets, and she appears as a guest and speaker at hundreds of events all over the globe. Over the years, Yaya’s work has impacted cosplay profoundly and has helped shape it into a commercial industry. Yaya is the first cosplayer to bring branded cosplay-focused sewing and crafting products such as fabrics, trims and sewing machines to the mass retail market. She is also the first to chronicle a cosplayer’s life story and the evolution of modern cosplay culture in the book, “Yaya Han’s World of Cosplay”.