I am a big fan of graphic novels.  When I say Stuart Gibbs bestselling series was going graphic I had to read it.  I still love the story of a school that teaches kids to be spies and then sends them on missions. The graphic novel was decently done.  The illustrations are fine, but there was something about the way it was colored that turned me off a bit.  Please be aware I was reading a digital galley and that may be the reason why.  Overall these books are a lot of fun for kids of all ages, and now they are in a format that will appeal to reluctant readers, and maybe even lead them to picking up the rest of the series in chapter book form.