Thanks very much, everyone, for all the great information and the correction about the frontlight.
I learn more and more from all the wonderful and wise people here. I'll be sending e-mails to publishers who don't offer ebooks that I want or who only use the Kindle format. It's best to make as many voices heard as possible, and I'll add mine to the choir. I have resorted to paperback for the series I'm currently reading, but hopefully future selections will be available in a format I can easily use.
Thanks again!
Daniell