There are many options for publishing books: self-publishing, traditional publishing, or hybrid publishing. Use these links as a starting point for learning more about the differences between different models:
News and analyses of book publishing for publishers, booksellers, agents, librarians, writers, educators and people involved in movies, radio and television.
"Think. Check. Submit. is a cross-sector initiative that aims to educate researchers, promote integrity, and build trust in credible research and publications"
From the Science Fiction & Fantasy Writers of America, this site has extensive information about publishers and presses, including those that appear to be scams or predatory