Android market question

I was d/l a book, (wifi) and the phone hung up for at least 1/2 hour with 10% of d/l left. Acted weird, wouldn't shut down, so had to pull the battery.
Phone back to normal, and the actual book is on the phone as an app.
So far, it seems to work, but what do I do if I didn't get all the download?
It's the Audubon bird guide and I don't feel like checking the whole thing out right now. What I did look up was there and impressive. Do I inform Google about the download hangup or what?