Some people, quite rightly, have pointed out the fact they don't have a Kindle and, therefore, couldn't read 'Sheep and Other Stories', even if they wanted to.
It's a fair point but help is at hand thanks to those webby, techy folk who do strange things with binary in the night and can bring down small countries and banking systems.
If you have a PC, here's a link to a FREE download which will give you a Kindle reader on your computer.
http://www.amazon.co.uk/gp/feature.html/ref=kcp_pc_mkt_lnd?docId=1000423913
If you have a MAC, here's a link to a free download which will give you a Kindle reader on your MAC.
http://www.amazon.co.uk/gp/kindle/mac/download
Good luck with it. I even managed to download one myself so it's definitely idiot proof.