Awe, but you were sweet for putting in the effort. My advice: don't deal with friend's books - it's toxic to their efforts as a writer and can be toxic to a friendship.
Instead, send them to me! Oh well I mean - Send them to Scribophile!
Writing group and online writing workshop for serious writers | Scribophile. Where aspiring authors and idiots alike get together, share our books, critique - and do all that stuff that friends shouldn't have friends do. #1 nail in the coffin for self-publishing authors: having their friends read their books and then thinking 'I'm so smart, my book is the best!' because the friends are too nice to say "this sucks." Instead, these poor obligated friend can say, "You know what! I have the perfect place for you . . . go to Scribophile."
Now - you being on debate politics - I wager that most of us are here to learn. It's not your run of the mill site where all manner of vitriol is spewed forth. We're a cut above debate dungeons and a notch below heaven.
Some are here to vent - but most people around here are not here JUST for that.