capital every words of the title?

[Cinderella_Sz]

If a title is "Where is our library?", should we capital the first letter of the word "is"?

thanks a lot

[Cinderella_Sz]

And how about a, an, the?

[Jamie (K)]

You're supposed to capitalize the first word, and then all words of four letters or more, plus forms of "have" and "be", and possessive pronouns. So you basically capitalize everything except prepositions of less than four letters.