Capitals - what are they and when do you use them in writing? WALT: Write an explanation telling people what capital letters are and when you use them in writing. Have you ever used a capital? Well a capital letter is a letter of the alphabet that is bigger than the other letters. Another word for capital letters and small letters can be called upper case letters or lowercase letter. Capital letters can be used for names of places , dates , names. You can also use an uppercase letter at the beginning or a sentence or after a full stop. Uppercase letter can also be used names of books , authors , shops , brands and also TV programs. I will give you some examples , well hi my name is May , I live at Glen Innes , which is in Auckland , New Zealand , my favourite author is David Williams and my favourite story from him is Mr Stink. My favorite TV program is Good Luck Charlie. Some capital letters don't look the same some are bigger than the others and...