What is a "seller disclosure form" and do I need to provide one?

What is a "seller disclosure form" and do I need to provide one?

John Caliendo (Realtor) gives expert video advice on: How do I price my home for the current real estate market?; How do I set up an open house?; How can I improve the appearance of my home in order to raise the asking price? and more...

In my state, it is required by law to provide a buyer with a seller transfer disclosure statement. If you are not providing a seller disclosure form, my hunch is that the buyer, certainly the buyer's agent will be asking for one.