Capitalization

[kitty 4]

Could you tell me please what is the correct way of capitalization with regard to titles and subtitles. shall I capitalize prepositions and articles?

Thanks

[5jj]

We usually use capital letters for the first word of a title, heading or sub-heading, and for other important words. We do not normally use them for prepositions and determiners.

The Curious Incident of the Dog in the Night-time
The Spy Who/who Came in from the Cold.

Subtitles are used in films to translate foreign-language films, and on television to help deaf people. Capital letters are used as in normal writing.
Kitty, posts are much easier to read if they are in black, and in a smalller font-size.