Macro/Close-up Book

I've started taking more of an interest in macro and close-up photography.
Can anyone recommend a good book on the subject? I've seen plenty on Amazon but as to which one to go for.....??
Also pointers to good websites on the subject would be most appreciated.
Thank you.

Have a look here: link there are some free ones you can download (you will have to register...free)

Thank you.

Most likely out of print, published in 2007.

Close-up and Macro: A Photographer's Guide by Robert Thompson

http://www.robertthompsonphotography.com/

Thanks Paul
Such a coincidence I've just picked that same book up from the library this morning. Looks very good.