I tried 'Close To Home: Finding Great Photographs In Your Own Back Yard' by Stuart Sipahigil, and I thought it was well worth the $5.00 asked (a little over 3 of your British pounds). It is more of a pamphlet than a book at 38 pages, but it does contain some excellent advice and wise words from someone who obviously knows his stuff. There are also plenty of insightful quotes from the likes of Ansel Adams and Proust which nicely support the authors' points.
A great idea, and very welcome in these cash-strapped times, and likely to benefit your photography (and bank balance) more than the latest gadget will. I will be sampling a few more titles, I am sure.