I'm interested in self help, specifically weight loss at the moment and am wondering: Does gender of the author matter? Say I were to create a weight loss program, or write a book. Which strategy would be most effective? Option 1: Male author to Male and Female readers Option 2: Male author to Male readers and Female author to Female readers. Option 3. 2 authors, Male and Female to Male and Female readers. I don't know if a man would listen to a woman when it comes to losing weight and whether or not a female would be comfortable taking advice from a male. What do you think? Any studies or personal experience in this area? Your input is greatly appreciated.