I forget how I stumbled upon this exactly, all I know now is that I did. It's not a hundred percent free, because allegedly some pages are left out. Also, not every book is scanned in with a preview. I can say that it has benefited me so far, as I needed to read a book for class, that the school library didn't have, and no local bookstore's had in stock. So, in the mean time, I'm reading In The Bubble online, first 3 chapters check out fine.