###Scott Kelby's "Digital Photography"
A great book to really improve your photography is Scott Kelby's [Digital Photography](http://www.amazon.co.uk/gp/product/032147404X?ie=UTF8&tag=ajsstuff&linkCode=as2&camp=1634&creative=19450&creativeASIN=032147404X).  

It's a hints and tips book, not a thorough working through of the principals, but I came away from it with a lot of really good solid practical things which I now include in my photography, so I'm sure it would be helpful.