I'm editing content for a website and I've noticed that many people will use the "&" symbol and the word "and" with no particular pattern. It seems like they just assume the "&" looks better than "and". I always try to avoid "&" unless it is part of an official name or title. When you see an "&" here, and an "&" there, it seems like there is no thought into the symbols we are using. What I would like to know is when is it appropriate to use "&" vs. and? Please help.