I picked this book up in Paris and was initially drawn to it because of the fact that it has no written text and my skill at reading French is negligible. The author/illustrator is Lewis Trondheim (wikipedia and his site) and the book is an absolute treat. the narrative weaves in and out of itself, full of cute alien effluvia, misunderstood social connections and questionable surgical acts. An English edition is available here (although I'm assuming the only English text is a one-page intro). Here's the A.L.I.E.E.N flash game via Drawn's coverage of the book.
Images. Aliens. Eviscera.