Hi Snowboy, thanks for the welcome. The four aces was a general sales training film which, if I remember correctly, was filmed on board an aircraft. The trainer used the four aces to illustrate pertinent areas within any sales presentation. eg the spades represented 'digging' for information and the diamond represented 'being the best there is' etc. It finished with the production of the Joker. I wasn't aware of a book by the same name, but if it is available, that would also help.
If you can locate either, I would be most grateful. Cheers 