After studying at the Joso School for Comic-Book Artists, Ramon started publishing in Spain books like Manticore, Yinn, or Castor & Pollux.
A few years later, he did his first American work for Dark Horse Comics (Joker Vs. Mask, Star Wars, Shrek). After some issues of Gen-13 for Wildstorm, he drew the acclaimed Detective Comics run Batman: City of Crime with David Lapham for DC Comics. Then he moved over to Marvel, and worked with Paul Jenkins in books like Generation-M, Civil War: Frontline, WWHulk: Frontline, and Marvel Apes.
Back at DC he worked World's Finest miniseries, Red Robin, Azrael, theTwo Face co-feature in Batman: Streets of Gotham, Batgirl, and Bruce Wayne: The Road Home Red Robin.
Ramon is currently back at Marvel working in the all-ages books Marvel Universe Ultimate Spider-Man, and Avengers: Earth's Mightiest Heroes.