I discovered Moebius only a year or so ago, owing to european comics being something of a niche interest over here, which is sad, because these are some of the most beautiful and strange comics out there.
I suppose this is a consequence of the perception that comics are an undeveloped and puerile medium, and not seen as the artform they truly are, unlike the high esteem the Franco-Belgian audience hold them (where comics are known as the 9th Art).
Moebius is probably best known for the fantastical worlds he creates which are surreal and otherworldly, my favorite piece by him would be Arzach, a silent comic which is very dreamlike in it's storytelling
I love how fluid his lines are and the use of strong colours here, it all feels so effortless...