Sergi Puyol (Barcelona, Spain, 1980) is a professional letterer and cartoonist. He studied Graphic Design at Elisava School in Barcelona. He works as a graphic designer, but he mainly draws and reads comics in his free time. He is the co-owner of the Spanish comics Publishing House Apa-Apa comics together with Toni Mascaró since 2011 where he has released almost all his work, including the most recent Strange Blood. He is co-editor of Colibrí Fanzine, also has participated in loads of other fanzines and some publications as Panorama, la novela gráfica española hoy (Astiberri, 2013) or Rubor (La Cúpula, 2015) as well as in the Lithuanian publication Kûs!.