You have 13 days for this left, but this is an amazing opportunity to get caught up on books from the Black Library that you have missed or not yet gotten a chance to pick up. I should also mention there are some other misc items included in these bundles, like Wallpapers, discounts for some recent video games, etc.
Its worth checking out.
https://www.humblebundle.com/books/horus-heresy-warhammer-book-bundle
