Work of art

Watercolor (American English) or watercolour (Commonwealth English; see spelling differences), also aquarelle (French: [akwaʁɛl]; from Italian diminutive of Latin aqua 'water'), is a painting method in which the paints are made of pigments suspended in a water-based solution. Watercolor refers to both the medium and the resulting artwork.

The conventional and most common support—material to which the paint is applied—for watercolor paintings is paper, usually special types of watercolor paper. Other supports or substrates include stone, ivory, silk, reed, papyrus, bark papers, plastics, vellum, leather, fabric, wood, and watercolor canvas (coated with a gesso that is specially formulated for use with watercolors). Watercolor paper is often made entirely or partially with cotton. This gives the surface the appropriate texture and minimizes distortion when wet. Watercolor papers are usually cold-pressed papers that provide better texture and appearance. Transparency is the main characteristic of watercolors. "It consists of a mixture of pigments, binders such as gum arabic and humectants such as glycerin, which together with other components, allow the color pigment to join and form the paint paste, which we know as watercolor. With regard to the colors, the quality of the pigments and their degree of concentration, it is what determines how good the watercolor is and also its price. A paint that has a high concentration of pigment, professional type, allows us to use it with a large amount of water without losing the intensity of color." Watercolors can also be made opaque by adding Chinese white. In the 19th century this could be controversial, and not regarded as "true watercolor" in the English tradition, but by about 1880 this dispute was over.

An old master print (also spaced masterprint) is a work of art produced by a printing process within the Western tradition (mostly by Old Masters). The term remains current in the art trade, and there is no easy alternative in English to distinguish the works of "fine art" produced in printmaking from the vast range of decorative, utilitarian and popular prints that grew rapidly alongside the artistic print from the 15th century onwards. Fifteenth-century prints are sufficiently rare that they are classed as old master prints even if they are of crude or merely workmanlike artistic quality. A date of about 1830 is usually taken as marking the end of the period whose prints are covered by this term.

The main techniques used, in order of their introduction, are woodcut, engraving, etching, mezzotint and aquatint, although there are others. Different techniques are often combined in a single print. With rare exceptions printed on textiles, such as silk, or on vellum, old master prints are printed on paper. This article is concerned with the artistic, historical and social aspects of the subject; the article on printmaking summarizes the techniques used in making old master prints, from a modern perspective.

Printmaking is the process of creating artworks by printing, normally on paper, but also on fabric, wood, metal, and other surfaces. "Traditional printmaking" normally covers only the process of creating prints using a hand processed technique, rather than a photographic reproduction of a visual artwork which would be printed using an electronic machine (a printer); however, there is some cross-over between traditional and digital printmaking, including risograph.

Prints are created by transferring ink from a matrix to a sheet of paper or other material, by a variety of techniques. Common types of matrices include: metal plates for engraving, etching and related intaglio printing techniques; stone, aluminum, or polymer for lithography; blocks of wood for woodcuts and wood engravings; and linoleum for linocuts. Screens made of silk or synthetic fabrics are used for the screen printing process. Other types of matrix substrates and related processes are discussed below.

An art auction or fine art auction is the sale of art works, in most cases in an auction house.

In England this dates from the latter part of the 17th century, when in most cases the names of the auctioneers were suppressed. In June 1693, John Evelyn mentions a "great auction of pictures (Lord Melfort's) in the Banqueting House, Whitehall", and the practice is frequently referred to by other contemporary and later writers.

A still life (pl.: still lifes) is a work of art depicting mostly inanimate subject matter, typically commonplace objects which are either natural (food, flowers, dead animals, plants, rocks, shells, etc.) or human-made (drinking glasses, books, vases, jewelry, coins, pipes, etc.).

With origins in Ancient Greco-Roman art and the Middle Ages, still-life painting emerged as a distinct genre and professional specialization in Western painting by the late 16th century, and has remained significant since then. One advantage of the still-life artform is that it allows an artist much freedom to experiment with the arrangement of elements within a composition of a painting. Still life, as a particular genre, began with Netherlandish painting of the 16th and 17th centuries, and the English term still life derives from the Dutch word stilleven. Early still-life paintings, particularly before 1700, often contained religious and allegorical symbolism relating to the objects depicted. Later still-life works are produced with a variety of media and technology, such as found objects, photography, computer graphics, as well as video and sound.

Artists' books (or book art or book objects) are works of art that engage with and transform the form of a book. Some are mass-produced with multiple editions, and some in small editions, while others are produced as one-of-a-kind objects.

There is no single definition of an artist's book, and formulating a definition is cumbersome and subject to debate. Importantly, the creation of artists' books incorporates a variety of formats and genres. They have a complex history, with a particular focus and growth in contemporary artist movements. They also have recently grown in popularity, especially in art institutions, and have become popular in art library reference workshops. The exact definition and usage of artists' books has become more fluid and porous alongside the growth in popularity of artists' books.

In art history, the French term objet d'art (/ˌɒbʒeɪ ˈdɑːr/ ; French pronunciation: [ɔbʒɛ daʁ]) describes an ornamental work of art, and the term objets d’art describes a range of works of art, usually small and three-dimensional, made of high-quality materials, and a finely-rendered finish that emphasises the aesthetics of the artefact. Artists create and produce objets d’art in the fields of the decorative arts and metalwork, porcelain and vitreous enamel; figurines, plaquettes, and engraved gems; ivory carvings and semi-precious hardstone carvings; tapestries, antiques, and antiquities; and books with fine bookbinding.

The National Maritime Museum, Greenwich, London, describes their accumulated artworks as a: "collection of objets d’art [which] comprises over 800 objects. These are mostly small, decorative art items that fall outside the scope of the Museum’s ceramic, plate, textiles and glass collections." The artwork collection also includes metal curtain ties, a lacquered papier-maché tray, tobacco boxes, cigarette cases, découpage (cut-paper items), portrait miniatures, a gilt-brass clock finial, plaques, statuettes, plaquettes, a horse brass, a metal pipe tamper, a small glass painting, et cetera.

Leadlights, leaded lights or leaded windows are decorative windows made of small sections of glass supported in lead cames. The technique of creating windows using glass and lead came to be known as came glasswork. The term 'leadlight' could be used to describe any window in which the glass is supported by lead, but traditionally, a distinction is made between stained glass windows and leadlights; the former is associated with the ornate coloured-glass windows of churches and similar buildings, while the latter is associated with the windows of vernacular architecture and defined by its simplicity.

Since the traditional technique of setting glass into lead cames is the same in both cases, the division between 'leadlights' and 'stained glass' became less distinct during the late 20th century. The terms are now often incorrectly used interchangeably for any window employing this technique, while the term 'stained glass' is often applied to any windows, sculptures or works of art using coloured glass.

Media, or mediums, are the core types of material (or related other tools) used by an artist, composer, designer, etc. to create a work of art. For example, a visual artist may broadly use the media of painting or sculpting, which themselves have more specific media within them, such as watercolor paints or marble.

The following is a list of artistic categories and the media used within each category: