**Rarity and Value?
In what ways do artists and photographers use postcards as a medium to express their creativity and engage with audiences?
How can collecting postcards be a valuable hobby, and what tips are there for those looking to start their own postcard collection?
What are some common themes or styles found in postcards, and how do they vary across different cultures and regions?
How have postcards evolved with technological advancements, such as the rise of digital communication and social media?
What are the historical origins of postcards, and how did they become popular around the world?
How did the transition from black-and-white to color photography impact artistic expression and commercial photography in the 20th century?
In what ways did advancements in photographic technology, such as the introduction of the Kodak camera in 1888, democratize photography?
How did the work of early photographers like Henri Cartier-Bresson and Dorothea Lange influence documentary photography and photojournalism?
What role did photography play during the American Civil War, and how did it impact public perception of the conflict?
