/A Christmas Carol/ by Charles Dickens, The Story of a Sale

I have a leather-bound, 1928 annotated edition of Dickens' /A Christmas Carol/. 'With marginal notes for salesmen'. From the intro:

The Greatest Sale Ever Made
...
To a salesman, "A Christmas Carol" is especially interesting, because it is the story of a sale. It is the most fascinating story of a sale ever. Only Dickens could have shaped fine-spun strategy used by Marley's Ghost to sell the idea of a Merry Christmas to "hard boiled," cynical old Scrooge. The sale in itself was an achievement, but what makes it especially noteworthy is that in getting Scrooge to see Christmas as he saw it, Marley's Ghost has sold the same idea merry Christmas to millions of readers throughout the English speaking world. ...

Annotations include Scrooge was Not Exactly What You Would Call an "Easy" Man to Sell--He was Too "Cagey". And Playing on the Harp Was the Vogue Then--But Now a Really Artistic Salesman Plays His Tune on the Prospect's Cash Register.