Emma is a cartoonist based in Spain. She shifted her focus to a mix of both architecture and work with small press publishers until working on comics full-time in 2007. Having collaborated with publishers like Marvel and DC, she was able to commit to working on her own creator-owned comics again since 2013, thanks to Image Comics, where she co-edited ISLAND and created I.D., MIRROR in two parts: THE MOUNTAIN and THE NEST with Malay cartoonist Hwei Lim, and where she currently co-creates the critically acclaimed PRETTY DEADLY with Kelly Sue DeConnick. The latter earned Ríos several Eisner Award nominations and a win for Best Cover Artist in 2020.