Forgive for the sidetrack, but:
Exactly how I felt with reading all of these free books on Mises! So now I just EPUB everything under the sun. Feel free to leave any requests in the (Semi-)Official Mises.org EPUB Release Topic. If I get requests I try to move those to the top of my conversion list to work on in my spare time.
Sadly, I do not get much reading done any more (so I do not know the exact content of Dissent on Keynes), but hopefully I am indirectly helping benefit many more people with the EPUB versions into reading the books. Plus it just allows EASY copy/pastability into forums for debates/discussions. (I cringed a little at the formatting of the quotes in the initial post).
Depends on what you want to read on.
If you are reading on the PC, I recommend Sigil (it is the EPUB editor that I use, but it works great as a reader), you can use Calibre (this is a library management program mostly for organizing digital books), or if you want to render it the same way it would show up on (most) ereaders, you CAN use Adobe Digital Editions (although I think the program is crap). There are also “Nook” and “Sony” readers (plus a few others) for PC (pretty crappy as well).
Long story short, on PC+Linux+Mac, use Sigil or Calibre.
If you have an Android phone, I recommend Mantano Reader (sadly it is not free, but it is well worth it if you will do lots of reading on the phone).
As to mobile Apple products, I have no idea. All I know is avoid iBooks like the PLAGUE.