The Fall 2008 issue of O At Home (An Oprah Magazine) gave an ‘All-Access Guide to Her Favorite Room’.   One page, Anatomy of Oprah’s Bookshelves’ says:

“Oprah’s  library - 1,500 volumes strong, and still growing - including first-edition Pulitzer Prize winners, Oprah’s Book Club selections, and John Steinbeck’s first novel, Cup of Gold…”

Oprah is quoted:

“I’m not a book snob,  first editions are great, but so are all books.  If you’re starting your own library, all that matters is that you start with what you love.”