Simone Padovani—Awakening/Getty Images

Gina Martin

Gina Martin doesn’t have a political background. But in 2017, after a fellow concertgoer took a photo up her skirt without her consent and police told her it wasn’t a criminal act, she made it her mission to change the law. For over a year, Martin pushed the British Parliament to criminalize so-called upskirting, raising awareness on social media and writing op-eds. In January 2019, lawmakers passed a bill criminalizing the act in England and Wales. Martin has since written a book inspired by the experience, Be the Change: A Toolkit for the Activist in You, that she says she hopes will light a fire beneath readers: “I want people to believe they can push for change at any level.” —Madeline Roache

TIME may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.