Yaya Han is a cosplayer, designer and author with more than 20 years of activity in the fandom world. Yaya has made 400 costumes, been featured in two US Network TV Shows and countless magazines, books, newspapers and online media outlets, and she has appeared 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 and trims 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 a published book, “Yaya Han’s World of Cosplay,” available world-wide.