An archivist is like a special kind of librarian who takes care of really old and important documents and things. You know how you have a special box where you keep your favorite toys and memories? Well, archivists have giant rooms full of boxes and shelves where they keep important objects, letters, pictures, and other things that people from a long time ago used or made.
Archivists wear special gloves and use special tools to make sure that these old things don't get damaged or dirty. They organize everything in a special way so that if someone wants to learn about something that happened a long time ago, they can find the right box or file to look at.
Archivists help people to learn about history by making sure that the things that were created a long time ago are stored in a safe and organized way so that people like historians, researchers, and museum curators can use them to learn about things that happened in the past.