Bests & Worsts Reviews from Amazon

I'm a graduate student and I spend a lot of time in libraries poring through books that can't circulate (rare, antique, etc.) Some are not even allowed out of specific parts of the university library. This is the answer! I can just roll the wand over the pages, and then I can study the text in the comfort and convenience of my house. I will add a picture of a scanned page for review as a product image. I'll never go back. Oh, it does eat batteries, but who cares...AAs are cheap.