Legacy letters can be as brief as several paragraphs, or many pages in length.
Like a document that passes on your possessions, this is a non-legal document that expresses your values, beliefs, life lessons learned, and other important messages about your life to be passed on to others.
Legacy letters are often written from parents to children, but they can be written to, or for, anyone at any stage of life. They often explain or reinforce family story, heritage, and traditions, the beliefs and values of the writer.