Chameleons have the ability to change colors to fit in with their environment. You can change your marketing approach for each of your environments, too. Have a book on stress management? Show HR managers how to reduce employees’ stress so they become more productive. Show parents how to reduce their children’s (or their own) stress. Show the unemployed how to lower their stress levels and get a job more quickly. Don't change the content, but only the way you describe it. There is no one-size-fits-all marketing strategy.