Who said anything about going to a library? I mean don't libraries let just about any person in? Think about the germs of books that tens of people tough?! 
Well, then you better not go buy anything ever. Machines put things into boxes, which are then shipped out. Those machines certainly have germs on them, as do the boxes.
Dust has germs. Food has germs. When the checker at a checkstand scans
anything and puts it in the bag, I'm sure her hands have germs. And the stockers who put things on the shelf in the first place, too. The bags, of course, have germs. The toilet seat has germs every time you sit on it, because your skin has germs.
Speaking of that, did you know that most keyboards have more germs on it than a toilet seat? So, in essence, you are typing on something that probably has more germs on it than any book from a library (libraries aren't as dirty as toilets).
For your future reference, other things with germs: Your face, your silverware, the handle for your door (when was the last time you disinfected that, hm! Oh, that's right, never.), the on button for your computer, your TV remote, your Xbox 360 controllers, your comb, your keys, your credit card, your clothes (no matter how much you wash them) and, let's not forget your Kindle that you are so in love with.
The point is, fear of germs is stupid. Sorry if I offend people for saying that, but it is just silliness.
Everything, every single thing has germs! And the hilarious part is we aren't all dying from these germs because of this little thing called the "immune system". As long as you aren't eating and/or having sex with your library books, you are probably not going to get sick. Ever!
I'd be more worried about my TV remote if I were you.
