In article ,
Sam Sloan writes:
I am about to publish a book about bridge. However, somebody told me
that nobody plays bridge any more.

Is that true? Is bridge play up or down?

Would it be a waste of my time and money to publish a book about
bridge?

There is still a reasonable market for bridge books, but you generally
need your name to be "known" for your book to sell well. I suspect that
a book by an unknown has little hope of substantial sales, however good
it might be. One possibility would be to approach a top player/writer.
If you can convince them of your book's merit, then they might agree to
be named as co-author (though of course they would want a share of the
profits).

Why have you crossposted to a couple of chess groups? Few chess players
are very knowledgeable about bridge (and vice versa)?
--
John Hall
"Banking was conceived in iniquity and born in sin"
attributed to Sir Josiah Stamp,
a former director of the Bank of England