Thematic classifications organize philatelic pursuits, providing a structure for collectors to specialize and deepen their knowledge. For instance, a collector might focus on postal history, topical subjects like birds or ships, or... Read more »
Rarity, condition, historical significance, and demand drive the worth of philatelic items. A pristine stamp from a short-lived nation, for instance, could command a high price due to its scarcity and historical... Read more »
