Titles are a Writer's Best Friend

How critical is a great book title? Big time important.

You could even sell your book on your title alone.

Cindy and Alan Garner self-published a book called, "Every Thing Men Know about Women."

How do I know for sure that the title alone sold the book?
The book had nothing in it except 120 completely empty blank pages.
Yet, the book sold well over 2,000,000 copies and still sells today!