Kickstarter shipment arrived! History of Sentinels Comics book?

It's been a while since I've visited the forums, but my Sentinels RPG shipment just arrived!  Yay!  But, I noticed that the "History of Sentinel Comics" book that was supposed to be included with my pledge is missing.

I've been pretty unplugged from any updates, so it's possible I might have missed news about it being delayed or shipping separately.  I just wanted to make sure it's not missing from my shipment!

Can anyone offer some insight?

Thanks!

History of Sentinel Comics is still in progress.  No dates given on when it'll be done so far.   All we know for sure is they'll ship it out separately when they have it similar  to any additional rulebooks.