What is the process for creating and issuing a new postage stamp, and who is typically involved in deciding the themes and designs?
What are the primary differences between definitive and commemorative stamps, and how do their uses and designs typically vary?
How has the introduction of digital communication affected the production and usage of postage stamps in recent years?
What are some rare or historically significant stamps, and what makes them valuable to collectors?
How do countries decide on the themes or subjects depicted on their postal stamps, and what processes are involved in their design and approval?
What is the significance of postmarking on stamps, and how does it affect their value and collectibility for philatelists?
