I have just over 300 books and I really dont think I can afford to get enough to get the 400 achievement. My question is do the number of books donated get carried over to the next reading drive or do you have to donate 400 in one reading drive to get that achievement? Will my count get reset to 0 when this reading drive ends?

I'm going to guess no, sorry. You are so close, and the month is still long, you may get there~

Your count will not get reset to 0, however it wont let you donate those same books again.

It's reasonable to think that you can get the achievements next drive, but do you really want to wait that long? And you'd still need new books anyways, so you can either just cash in your 3## points this time around and start collecting for the next one soon, or just try and get those extra books.

Yeah I am going to try and get the last books but I cant find any that are not in the millions and that is more than I can afford being I need almost 100 of them.

You're sure there's none that aren't in the millions? I have 350 and I'm still buying in the 500k priceline. Have you been using Monoclide (aka the magical book checklist)?

Alright I got 383 now. That list is a lifesaver! But now I am broke so dont know exactly how I will come up with the last 17 and so far I have only gotten 2 books I could use out of the Blue Sky machine after using all the tokens I got out of the 40 wizard quests I did,lol!