There's more pertinent info on a in-flight barf bag than his two books.
There is so much absolute bunk in these books that entire episodes appear to have been made up out of whole cloth. I suspect that those who believe that Bill Ayers ghosted the books for O. may be on to something.
It is something akin to “Mein Kampf.” Precious few people would have voted for the dictator in waiting if they had actually READ the book.