Addendum:
I have stumbled upon a great resource:
Your county library.
As the Japanese say: "Hory Clap!"
All you need around here is a library card and a little app called Libby - Technically even that ain't true, because it will work with Kindle, I guess...
Libby is available in Apple, Droid, and an online reader for about anything else.
DLD the app... plug in your library, and your card number, and off you go.
FOR FREE.
Now, evidently this is supported by my state, so it may be different elsewhere, but you log in, find a book, and check it out... just like at the library.
The state must purchase (x) copies... It's DRM'd... and in ten days or 2 weeks or something, it is no longer yours...
Sometimes they are over their count on a book, so you can put it on hold, just like at the library. Right now I am in Preston & Child's Pendergast series, as I had proposed upthread... Something close to 20 books... The next one is currently on hold for me at the library.
As an aside,
I have had some luck with Kindle... Even signed up for Kindle Unlimited. Spent 20 bucks on books before I signed up... And then found out the books I want are not exactly unlimited. Spent ten bucks more so far...
But now I can walk right through that series for free, from the library. And then many more. Perhaps it is not as robust a selection as I might require (albeit that it is pretty dang robust so far), but for simple entertainment, I can do no other. My volume of reading far outspends my pocketbook.
As another other aside,
I have acquired a nice little Lenovo Tab M9 As my main reader. It far outstrips my old clunky samsung Tab A... and comes with a chromatic reading mode, built right in. And it resides in a folio-styled case, which I resented at first, but it turns out to heighten the reading experience, as it provides many ways to hold the tablet more like a book - Ways in which, I am familiar - I know that sounds weird, but you would be surprised at all the positioning one goes through when reading, and this form factor lends itself to that nicely.
Great gains as I settle into this eBook thing!