A-Z theme

I think I have decided upon a theme for my A-Z challenge. I know they say I don’t need a theme, but I think I’ll be more inclined to follow through if I do.

Now to make a list of words from A-Z.

A-Z

Well, I guess one of my questions got answered, because someone saw my other post about the A-Z challenge. Now if someone would answer a couple more:

1. Is there a minimum/maximum number of words?
2. Does this have to be something new written especially for the challenge?