Consider this a double sided review, sort of like going to see a good movie at the drive-in. A twofer so to speak. First, the eReader I am reviewing is not the Kindle. I had my first experience with a Nook, the Barnes & Noble eReader.
I must say I am not tempted to buy an eReader at this time but only because every tech prognosticator says they will be obsolete in a few short years, which in tech talk could mean next month. My personal experience with the Nook was very positive. The weight was more than a typical paperback but less than a hardcover book of any decent length. Holding it was no more or less cumbersome than holding the equivalent book. Being able to adjust the font size is a huge plus, I mean HUGE.
I did use an added clip-on light for late night reading but it's the same one I use to read a book, so no big disadvantage there. The charge lasted a good long time even if I forgot to give it morning nursing time from the electronic nipple. Truly an all around positive experience, if I wasn't sure every laptop, tablet and device to be named later will not have the same capacity by the next holiday cycle, I would buy one.
Now to the books I read on the Nook. I know you know that Arthur C. Clarke wrote 2001; you probably also know he wrote a sequel 2010 made into the Roy Scheider and John Lithgow movie, which Clarke was not associated with. Sir Arthur also wrote 2061 and I have recently learned 3001. I read as far as 2061. However, he along with Stephen Baxter wrote another three novels that "will do for time what 2001 did for space." Well sort of, that's a big boot to fill, but I will concede that the three "time books" are worth the read for SF fans of Clarke. Titles: Time's Eye, Sunstorm, First Born. I do strongly suggest that you not read any reviews; they all want to give away the big turn in the first book, which really needs to be experienced in the context of the story.
I must add one caveat: if you are a reader who is disappointed when a well written book fails to deliver an ending that gives you complete story closure then this series may not be your cup of tea. But for sheer SF entertainment, I would put them on my Nook or Kindle or beach blanket.