Okay there is the achievement for 400 books but if I dont get that this time will my book count this time around be carried over to the next book drive or do you have to do 400 books all at one reading drive to get the achievement? I hope this makes sense.

I'm pretty sure nothing is carried over from the previous reading drive. The achievements all count for this year's, so you have to achieve everything.

Oh man that bites,lol! I am really bad with restocking in the book nook so will never be able to get a hold of those new books.

vending helps a lot. Go to blue sky. I've gotten 6 or 7 of the new books...well, the last new ones, just from vending

And i agree with vending. That's how I got most of my books as well