Victor Moscoso (born 1936) is an American illustrator and comic book artist, especially noted for his work in the late 1960s as a designer of psychedelic art and concert posters (many for The Fillmore) and as a contributor to underground comix (he is among the artists who regularly appear in Zap Comix). Wikipedia
The definitive Wikipedia entry for Victor Moscoso. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Victor_Moscoso