This one may be of interest — THE BOOK AGENT: HIS BOOK by Joshua Wright
(1904).  The text is available at archive.org.

Barb

On Saturday, January 18, 2020, Clay Shannon <[log in to unmask]> wrote:

> Did any book agent write up his experiences - what it was like traveling
> around the country, from house to house and farm to farm, selling people
> advance copies of Twain's next book? I would wager a healthy sum that there
> were some quite interesting stories to tell.
> - B. Clay Shannon
>