Book about baby development for DH

[moggle]

Our DD is 6 days old and having devoured his books about pregnancy and labour, DH wants a new book to read. He says he'd like something that tells him what baby can do when, and what are good activities to do with them at each stage. At the moment hes constantly googling and telling me how far she can see, and other things like that.
I know about the wonder weeks book but can anyone recommend any others? Would prefer a book that's not pushing a particular baby rearing method but one that's fairly factual.
Thanks!