Over the years she staged several auctions of memorabilia associated with her life with John Lennon .
She published a book of memoirs , A Twist of Lennon , in 1978 , and a more intimate biography , John , in 2005 .
Over the years Lennon staged several auctions of memorabilia associated with Lennon 's life John   Lennon .
She published a book of memoirs , A Twist of Lennon , in 1978 , and a more intimate biography , John , in 2005 .