Congrats and THANKS!!! I've been looking forward to this. It couldn't come at a better time with the way the series has been low-key lately (to say the least). I'm certainly going to pick one up in the near-future, if not sooner. Even with the descriptions, I'm a little confused over what to expect. (i.e. Is it equal-ish time for the main series games, or are some favored heavily over others in page count. And what's the general ratio between screenshots vs. artwork between the text?)
Nevertheless, I've always wanted a Castlevania history-type book like this. I'm especially interested to hear your thoughts on the more recent titles; but I also like the idea that you're going to revisit the titles you've already written about here, since a historical perspective helps on the lost merits of some titles. (I especially wonder how the N64 era will shake out in your final assessment!!!)
My salute for all of the work you've put in on this, and on the Dungeon in the past. It's meant a lot. And by the way, semi-unrelated, have you written about your thoughts on Contra Rebirth anywhere? (Fan of the old Contra HQ, too--and that series, which has had its share of rough times).