Why are physical book sales doing so well?

Yes. Here is one.

You could buy a cheap tablet. The Kindle Fire is on sale frequently for $40-50. Or if you have a smart phone with a decent size screen, you could download the Kindle App for it.

I was going to recommend this; it lets you convert and manipulate formats in addition to simply reading the books.

As for eye strain, as I mentioned my rule of thumb is a minimum 300 pixels per inch, the more the better.

It is false to view codices vs e-books as competitors or that you have to choose between them; they are complementary.

Absolutely.

Amazon has Kindle software for PCs and Macs.

Darren Garrison linked to Calibre.

And I haven’t tried it myself, but I think you can use the Overdrive software to both check out and read library ebooks.

Also, not for Windows/Mac, but for Android, I can’t praise more Moon+.

(Well, technically you could run Moon+ on Windows using one of the many Android emulators.)

True, Calibre has a reader in it but it is really, really clunky; Amazon’s is better.

Reading an entire book on my computer screen is not my idea of a good time, though. That’s why I bought a Kindle.

Only if you’re someone who doesn’t actually read.

Yep. I have a Kindle, and the Kindle reader on my phone. The pages sync back and forth depending on which one you read last. It’s VERY nice to have the current book I’m reading on my phone for those times I’m stuck waiting.

Thanks!