Printmaking in its different forms, Etching, engraving, wood cut, wood engraving, lithography and screenprinting: Intaglio, relief, planographic and stencil
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Intaglio Printing Interesting Thing of the Day
Printmaking 101 - Learn about the different types of printmaking: Printmaking Lessons for Kids: KinderArt
History of printing - Wikipedia
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Art Focus: Understanding Printmaking - Old World Stoneworks
Collecting guide: key things to know about Prints and Multiples
The artists who put print-making on the map, from Salvador Dalí to Pablo Picasso, London Evening Standard
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Printmaking - Etching, Engraving, Relief