Many children like stamp-collecting. Stamp-collecting starts in 1854. As time passes, there are more and more stamp-collecting. Not only children but also men and women collect stamps. In 1921, America began selling stamps to the collectors. In some countries, there are even lessons of stamp-collecting in school. People are becoming more and more interested in stamps. Every picture on a stamp has meaning in it. It may be the head of a famous person or an important place. Each stamp tells us a story.