Evelyn Waugh Was Born 100 Years Too Soon

Evelyn Waugh (1903-1966) (Biography.com)
I long thought "he" was a woman because
dust jackets never had photos.

The majority of book-readers are women, and they want to read woman writers:

A 2014 Goodreads survey of 20,000 male and 20,000 female participants on the site found that of the 50 books published that year that were most read by women, 46 were written by women.

One growing genre is the psychological suspense novel with a female protagonist. Because of a common belief that only a woman can truly get into such a character's mind, female readers favor woman authors.

Male writers are adapting ambiguous pseudonyms (e.g., Jordan, Stacy) or just abbreviations (e.g., J.K. Rowling, who is, of course, a real woman) so as not to be rejected out of hand.

These days men aren't reading a lot of books, especially fiction. It's a woman-readers' world, and male suspense writers must adapt accordingly.