Giving my article the same title as a published book by another author I'm about to submit an article to a journal for review. There is a published book (about 5 years old) that has the same title as my working paper. As you might guess, the paper and book are in the same subfield of study. The shared title is cute variation on the name of a prominent organization (which honestly fits my paper better than the book).

Do I need to change the title of my paper? Another thing to consider is that the author of the book is a likely candidate to be selected as a reviewer for the article.
I'll be perfectly honest - if I was in that subfield, I would be extremely annoyed in having two works with the same title - simple search for the works would be always troublesome, mentioning one of those works during a talk would always require a digression, etc. 

All of that would distract other researchers from the results, especially for the paper considering that it was published later. Ultimately it is not inconceivable that referee (whoever it might be) demands the change of the title.

Bottom line - I would try to think another witty title. :)