It's a fairly normal thing to do: http://en.wikipedia.org/wiki/Letter_case#Headings_and_publication_titles http://en.wikipedia.org/wiki/Letter_case#Headings_and

It's a fairly normal thing to do: http://en.wikipedia.org/wiki/Letter_case#Headings_and_publication_titles http://en.wikipedia.org/wiki/Letter_case#Headings_and_public...