Help need to find a stamp book!

Floxxie

This is an unusal request for me; although those that collect stamps may be able to help.

My Dad asked for a last minute Christmas present - a book that determines the quality of stamps. I understood from the snippets I got, that it means stamps are graded depending on whether they are not used (mint) or used and there are lots of inbetweens. He was looking for a book that would have detail these gradings with pictorial examples.

I don't even know where to start but have promised to produce the goods.

Help!!!!

hel8itch

found this

BRITISH STAMP MARKET VALUES 2007
http://www.aarons-books.co.uk/isbninfo.php?isbn=0862962633

http://www.amazon.co.uk/British-Stamp-Market-Values-Collecting/dp/0862962447


or
Collect British Stamps: A Stanley Gibbons Colour Checklist

http://www.amazon.co.uk/Collect-British-Stamps-Stanley-Checklist/dp/0852596111/ref=pd_bxgy_b_text_b/202-4618401-9944666