I know you're looking for advice on specific titles, but I've used O'Reilly's Safari in the past and highly recommend it. You can try a free trial subscription and cancel after your trial period expires. It has a massive library of technology books to choose from. I don't have an active subscription, but I've definitely used it to check out a few books before I commit to buying the hard copy versions. I think you'll like it.
(edit: just realized you meant Sitepoint books, and these aren't published to safari. My apologies if my post is completely irrelevant now.)