The small red mark
On a Chinese painting or a work of calligraphy, you will often notice one or more small squares of red. These are impressions of seals, sometimes called chops in English. A seal is a stamp, usually carved from stone, wood or another material, bearing a name, a phrase or a design. It is pressed into a sticky paste and then onto paper, silk or another surface.
Seals have two linked roles. They are practical devices for marking identity and authority, and they are also a distinct art form in their own right, where carving, calligraphy and composition meet in a very small space.
Seals as signatures
For a long time, a seal in China served roughly as a signature does elsewhere. It marked ownership, approval or authenticity on documents, letters, goods and official papers. Officials had seals of office, and the seal of a ruler stood for authority. A legendary or semi-legendary story often retold in history is that the First Emperor had an imperial seal made, and later dynasties treated such seals as symbols of legitimacy, tied to ideas like the Mandate of Heaven. The exact history of particular famous seals is a mix of record and tradition, so such stories are best read with caution.
Private individuals also owned seals. Using one could confirm a signature, close a contract or mark a possession, such as a book in a collection. Even today, seals are still used in various Chinese-speaking regions and in neighboring countries for formal and personal purposes, alongside written signatures.
Seals in the arts
As the arts of the brush developed, artists and collectors began adding seals to their works. A painter might add a name seal, which identifies the artist, and a leisure seal, which carries a motto, a poem line or a personal sentiment. Collectors and later owners sometimes stamped their own seals on valued works, so that a famous scroll can carry a trail of marks showing who held it over time. Reading these marks is a skill in itself, and connoisseurs study them, though forgeries of seals also exist.
Placement matters. A seal can balance the composition, adding a point of strong color to a mostly black-and-white sheet. This is part of why seals appear in landscape painting and in Chinese calligraphy, where the red mark acts almost like a final brush stroke.
Scripts on seals
Seals typically use archaic styles of writing, which gives them a particular look. A common choice is seal script, an old formal style of Chinese characters. Characters are adapted to fit the square or round shape, and a carver may stretch, compress or rearrange strokes to make the design fill the available space evenly. Skilled carvers draw on knowledge of historical forms, and some also refer to early inscriptions such as those from bronzes or, more distantly, the world of oracle bone script, though seal script itself comes from a later stage of writing.
Two basic types of impression are often described.
- Intaglio, or white-text seals, in which the characters are cut into the stone and appear white against a red ground.
- Relief, or red-text seals, in which the characters stand raised and print red against a white ground.
Each gives a different feel, and carvers choose between them depending on the style and purpose.
Materials and tools
Seals are made of many materials, including stone, wood, bone, metal and jade. Softer stones that are easy to cut but still durable became popular, particularly among scholar-artists, who could carve their own. This made seal carving accessible to literati, and from roughly the late imperial period, it grew into a recognized field in which carvers took pride in individual style.
The carving tools are simple: a knife with a sturdy blade, often held in a fist grip, along with brushes, ink and sandpaper for finishing. The carver typically first writes the design on the stone’s surface in reverse, so that the finished impression reads correctly, then cuts along the lines. Skill lies in controlling the knife to give lines of varying thickness and texture. Edges of a seal are sometimes deliberately roughened or chipped to give an aged, natural effect.
The sides of a seal may be carved too. Many seals have a top, called a knob, finished as an animal, figure or landscape, and side inscriptions describing the carver, date or a short remark. Collectors admire these as small sculptures.
The red paste
The characteristic red color comes from a paste, traditionally made with cinnabar-colored pigment mixed with an oily or fibrous base. Pastes vary in quality, and a good one gives a deep, even color that does not bleed. Users press the seal into the paste, then onto the surface, and lift carefully so the mark stays crisp. The red color brings to mind the broader associations of color symbolism, where red is linked with luck and celebration, though the practical reason is largely contrast and tradition.
A craft of restraint
What impresses many viewers is how much expression lives in so small a space. A seal usually measures only a few centimeters on a side, yet a carver can show rhythm, balance and character in it. This reflects an old habit in Chinese art: valuing suggestion and economy.
Today seal carving continues as an art, with societies, exhibitions and students learning in studios and classes. People also commission personal seals as gifts or keepsakes, often with a name rendered in characters. To own one is to take part, in a small way, in a tradition that joins identity, writing and art.