"Raising money for Cancer Research UK."
The purple book is a combined edition of the other 3 separately published coloured books.
The purple book (combined edition)
The blue book
The green book
The orange book.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
At the sharp end : advice and tips from real businesses : written by business people, for business people. ISBN 9781909129535. Published by Onion Custard Publishing. Publication and catalogue information, links to buy online and reader comments.
