The magnifier surface reflects into the user eyes lights used to illuminate the page the reader desires to read with magnification. No matter how the sheet desired to red the magnifier itself or the lights are oriented the reflection into the reader eyes makes reading the desired page HARDER that with no use of the magnifier. I would not recommend purchase of the product.
I gave it to a man who is almost blind and had been using a magnifier the size of a playing card. He was so grateful that he was able to read a page in a book even without his special glasses.