Not much information is available on this gent working on this traditional form of Korean printing. It's interesting to see - and to ponder how the process of getting information around has changed over the years.
Imagine a point in history when it took someone an entire day to set the type for a single page. And those pages are the only way to share facts and information. Imagine how collections of these pages would be rare, and subject to destruction through floods and fires and war.
Consider how much information has been lost simply because it couldn't be communicated effectively, or shared. Think of how the most beautiful stories must have been lost in the sands of time. Imagine how our own destiny is similar.
It took me about 30 minutes total to compose this IotD entry; from saving the image, to processing it for the site, to writing the text you read here. And it likely contains more information than the text this person is carving. But probably not more important information.
If it takes a whole day to set a page, IotD would not be critical enough to warrant printing at all. Printing would have to be reserved for holy texts, government edicts, posters of important information, and/or pornography.
Last thought on this one: what if the dude makes a typo?