Door Hardware by Jill

My husband requested me to go to a hardware store. He gave me a list of what to buy. Then he told me if I don’t know where it is, I should just ask a person who works in the hardware to direct me to a section of the hardware I wanted. On the list I have a doorknob and surely I would be looking for it in a door hardware section. It is my first time to buy these kinds of things and I admit I am not good in it.