Warhol by Victor Bokris.
It frequently skews towards lurid detail but it’s also meticulously researched and does good job of depicting his childhood growing up in an immigrant family in Pittsburgh, his art school days, and his early career as a commercial artist. When the book gets into the 60s and 70s we’re on more familiar ground, yet even then Bokris manages to offer a few fresh surprises. It also manages to portray Warhol in all his contradictions. He is despicable and adorable, generous and greedy, passive but manipulative, emotionally needy yet cooly distant. The man was deeply shallow and shallow in his depth and that is reflected in his work.

Superstar: The Life and Times of Andy Warhol.
A documentary made only 3 years after Warhol’s death. There are plenty of interviews with surviving friends and family and an interesting opening credit sequence in which one of Warhol’s previous assistants is shown making a custom silkscreen portrait of Warhol in his trademark style. It demonstrates once and for all, as does Bokris’ book, that in spite of the supposedly impersonal mechanicized process behind his work (an impression Warhol encouraged) it is still a very hands-on, artisan process.

Uncle Andy’s: A FAABBBULOUS VISIT WITH ANDY WARHOL by James Warhola.
A delightful children’s book written and illustrated by one of Andy’s nephews. This is the most rose-tinted view of Warhol you’ll ever see, but it does a nice job of showing what it was like to be a child visiting your famous, eccentric artist uncle.