El pirograbado (del griego. piros = fuego graphos = escritura) es una técnica de dibujo, primordialmente, mas su utilización abarca en la práctica, cualquier grabado empleando el aparato conocido en la actualidad como pirograbador, el cual emplea electricidad para generar el calor suficiente en la punta. Se trata de quemar un soporte, ya sea éste de papel, cartón, o madera, con el pirograbador marcando un dibujo sobre esa superficie. El pirograbador tiene varios mangos parecidos a soldadores de estaño, y varias cabezas con diferentes formas.Regulando la intensidad del calor que desprende la punta, se consigue más o menos intensidad en el quemado y, consecuentemente, distintas tonalidades del marrón suave al negro absoluto. El método que antecede a la actual electro-termo-grabación es el del empleo de la llama abierta y un objeto metálico que absorbiese el calor para así transferirlo hacia la tabla de madera.

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Pyrography or pyrogravure is the art of decorating wood or other materials with burn marks resulting from the controlled application of a heated object such as a poker. It is also known as pokerwork or wood burning. The term means "writing with fire", from the Greek pur (fire) and graphos (writing). It can be practiced using specialized modern pyrography tools, or using a metal implement heated in a fire, or even sunlight concentrated with a magnifying lens. "Pyrography dates from the 17th century and reached its highest standard in the 19th century. In its crude form it is pokerwork." A large range of tones and shades can be achieved. Varying the type of tip used, the temperature, or the way the iron is applied to the material all create different effects. After the design is burned in, wooden objects are often coloured. Light-coloured hardwoods such as sycamore, basswood, beech and birch are most commonly used, as their fine grain is not obtrusive. However, other woods, such as maple, pine or oak, are also used. Pyrography is also applied to leather items, using the same hot-iron technique. Leather lends itself to bold designs, and also allows very subtle shading to be achieved. Specialist vegetable-tanned leather must be used for pyrography (as modern tanning methods leave chemicals in the leather which are toxic when burned), typically in light colours for good contrast. Pyrography is also popular among gourd crafters and artists, where designs are burned onto the exterior of a dried hard-shell gourd.

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