Letterpress printing is a form of relief printing that uses a special wood or zinc die that transfers ink by way of pressure to a substrate. This style of printing was originated by Johannes Gutenberg in the mid 15th century and gives a unique bite into the paper. It leaves a feal similar to that of a spherical globe with high and low spots. Often times this is referred to as embossing or debossing. Letterpress printing was the primary means of distributing information until offset in the second half of the 20th century.