Publishing a book is like stuffing a note into a bottle and hurling it into the sea. Some bottles drown, some come safe to land, where the notes are read and then possibly cherished, or else misinterpreted, or else understood all too well by those who hate the message. You never know who your readers might be. Margaret Atwood
A couple of months ago I attended a literary event where a leading editor offered up tips and advice to group of (mostly) aspiring writers. One thing she told her spellbound audience was:
Not everyone will like your book.
There was one lady in particular who seemed crestfallen by this observation. I smiled at her indulgently, but I’d had the same naive belief myself— that I could write a book that would be universally liked—not so long ago!
Just in case you were under the same happy illusion I’m going to set you straight.
For a start, what genres do you like to read? Like me, I bet you have definite likes and dislikes. Dune aside, I have little interest in science fiction. Harry Potter and Gormenghast aside, it’s much the same for fantasy novels. Conventional romances leave me completely cold. Otherwise I guess I’ll pretty much read anything, just as long as it’s well written.
Thus if you write SF I’m unlikely to rush out and buy your book, just as you’ll not be interested in reading Happily Ever After? if women’s fiction is not your thing. However, our likes and dislikes go beyond simple preferences. Following is my (admittedly unschooled) theory for this.
When I wrote my novel, I thought it would simply be accepted as a diverting yarn without alteration or interpretation. The reader, I assumed, would be a passive vessel who would accept my story, my version of events, sort of like this:

Benison, "02. May, 2012" | #
Lou Marcroft, "01. May, 2012" | #
Benison, "25. April, 2012" | #
Kylie L, "25. April, 2012" | #
Benison, "05. March, 2012" | #