
if Sagmeister can do it, so can I!
Duotone is a halftone reproduction of an image using the superimposition of one contrasting color halftone (traditionally black) over another color halftone. This is most often used to bring out middle tones and highlights of an image. The most common colors used are blue, yellow, browns and reds.[1]
Now due to recent advances in technology, duotones, tritones, and quadtones can be easily created using image manipulation programs.
Wood was used for letterforms and illustrations dating back to the first known Chinese wood block print dating from 868. The forerunner of the block print in China was the wooden stamp. The image on these stamps was most often that of the Buddha, and was quite small. Provided with handles to facilitate their use, they were not unlike the modern rubber-stamps of today.
The use of wood in printing as a material for making type had been made for hundreds of years before the 19th century.With the expansion of the commercial printing industry in America in the first years of the 19th century, it was inevitable that someone would perfect a process for cheaply producing the large letters so in demand for broadsides. Wood was the logical material because of it's lightness, availability, and known printing qualities.
Darius Wells of New York found the means for mass producing letters in 1827, and published the first known wood type catalog in 1828. The usual procedure was to draw the letter on wood, or paper which was pasted to the wood. Then cut around the letter with a knife or graver, gouging out the parts to be left blank.
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tessellation or tiling of the plane is a collection of plane figures that fills the plane with no overlaps and no gaps. Tessellations frequently appeared in the art of M. C. Escher. Tessellations are seen throughout art history, from ancient architecture to modern art.
In Latin, tessella is a small cubical piece of clay, stone or glass used to make mosaics.[1] The word "tessella" means "small square" (from "tessera", square, which in its turn is from the Greek word for "four"). It corresponds with the everyday term tiling which refers to applications of tessellations, often made of glazed clay.