LIVINGSTON, Mont. -

Al Feldstein, whose 28 years at the helm of Mad transformed the satirical magazine into a pop culture institution, has died. He was 88.
    
The Franzen-Davis Funeral Home and Crematory says Feldstein died Tuesday at his home in Livingston, Mont. No cause of death was released.
    
Feldstein and publisher William M. Gaines assembled a pool of artists and writers who turned out such enduring features as "Spy vs. Spy," ''The Lighter Side of..." and "Snappy Answers to Stupid Questions." Feldstein retired from Mad magazine at the end of 1984.
    
The funeral home says Feldstein began working in comics while still a student at the High School of Music and Art in New York.
    
His survivors include his wife, Michelle, a stepdaughter, her husband, and two grandsons.