One of the business books that I co-wrote is mentioned (favorably) in today's NEW YORK TIMES.
Of course, I can't tell WHICH version of KISS, BOW OR SHAKE HANDS the article is referring to. By the end of this year, there will have been six with that title. Different sub-titles, of course.
Why so many? That title sells. The lifeless titles picked by publishers (e.g., THE INTERNATIONAL TRAVELER'S GUIDE TO DOING BUSINESS IN THE EUROPEAN UNION) didn't sell.
You go with what works.