Tolkien fans with a science leaning might want to check out Henry Gee’s book, The Science of Middle-Earth.
Y’know: how on earth do orcs breed? (Suffer the thought…) That sort of thing.
Those who are quick may even be able to get a free promotional Kindle eBook to review and generally shout-out about.*
Mac users: you can read Kindle books on Macs via the free Kindle software.
There is also apparently a German edition.
* Available for one day only. Less than a day, actually, as it the promotional offer has been underway for a few hours. (You hate this sort of small-print footnote, don’t you?)
Some book reviews on Code for life: