The Society for the Diffusion of Useful Knowledge (SDUK) was founded in London in 1826 with the object of publishing information to people who were unable to obtain formal teaching or who preferred self-education.
Almost all maps on the market today were produced since the invention of the printing press. Printing methods such as copper plate engraving, steel engraving or lithography were used. These hand-printing methods require the skilled hands of craftsmen. Only artists would use such time consuming methods for printing today. Therefore old maps are beautiful, decorative works of art that are suitable for framing. Remember that printmakers must to create the image backward so that it will be correct when it is printed on paper!