Enzo Ferrari Biographies

Hey all ;

Of the many books on Enzo Ferrari's life, I have 2 first editions of :
"Enzo Ferrari - The Man, the Cars, the Races." published in 1991, and
"Enzo Ferrari" , by Richard Williams.- published in 2001.

Of these two books, I wonder if anyone knows which one is the most desirable to have. I gather the Willaims book is more recent, and therefore more up-to-date.
I have also heard of the Yates book fetching close to $100 for a first edition, (Which I have.....both are hardcover first editions...)

I am considering selling one , and I have read them both and found them to be both good reads, different styles, with the Yates book being more of a "warts and all" sort of book.

Has anyone here read them , and could you offer your opinions ?

Best ;

hps