You can find these unused cards for sale at flea markets or antique shows. They won't have letters written on them or postmarks or stamps, either. When you read the backs of old postcards, you'll probably wonder who wrote the note. By reading the cards, you will learn a lot about the lives of the people who sent them. Old postcards let you see how things used to be.
Some collectors like to keep their cards in photo albums so they can read the backs of the cards.
Others prefer to put lots of cards on one big poster. Her dad is an antique collector. Rachel became interested in postcards when he gave her some old ones. Sometimes she goes to antique shows with him and buys postcards for her collection. She has been saving them since she was five years old.