Thank you, Ron! I guess I thought you had to buy the light that comes built in with the case that is sold on Sony's website, which is $54.99. I hadn't thought of using a regular book light.

I'm assuming if I bought a book light I would also need a case? I would think you wouldn't want to clip a light directly onto the ereader...
I'll be anxious to see if there are any other suggestions as to what I should look for. Hopefully I can get to a store one of these days that sells ebook readers, so I can see how big they really are.