Stamps, also known as postcards, are small pieces of paper that bear an image or design and a specific value, which represents the amount of postage required for sending mail. Stamps are issued by postal authorities and are used as a means of payment for mail delivery services.

The history of stamps can be traced back to the early 19th century, when the introduction of the postage stamp revolutionized the way people sent mail. Before stamps, postage was paid by the recipient, not the sender, which meant that mail could be delivered without payment and the recipient was responsible for the cost.
The world's first postage stamp was the Penny Black, issued by the United Kingdom in 1840. It featured an image of Queen Victoria and had a value of one penny. The Penny Black was a huge success and was used throughout the UK and in many other countries around the world.
Today, stamps come in many different designs and values and are issued by postal authorities in countries all over the world. Some stamps feature famous people, events, or landmarks, while others commemorate important anniversaries or celebrations.
Stamps are also a popular hobby and are collected by enthusiasts all over the world. Stamp collecting, also known as philately, has a long and rich history, with some of the world's most famous collectors including Queen Victoria, John Lennon, and Franklin D. Roosevelt.
So, whether you're an avid collector or simply use them to send mail, stamps are a fascinating part of our daily lives and a testament to the history and evolution of postal services around the world.