Recently I went to an art collecting seminar and found the following information such a delight. I'm sure it is relatively familiar to art majors and those who have education in art, however it is superb information for those who love art and want to know more.
One of a kind - You would have the only one there is in the world, i.e. acrylic or oil painting on canvas.
Serigraph - A stencil method of printmaking in which an image is imposed on a screen of silk or other fine mesh, with blank areas coated with an impermeable substance, and ink is forced through the mesh onto the printing surface. Also called silkscreen process and screen-printing. A serigraph is a print made by this method.
Lithograph - In the graphic arts, a method of printing from a prepared flat stone or metal or plastic plate, invented in the late eighteenth century. A drawing is made on the stone or plate with a greasy crayon or tusche, and then washed with water. When ink is applied it sticks to the greasy drawing but runs off (or is resisted by) the wet surface allowing a print - a lithograph - to be made of the drawing. The artist, or other print maker under the artists supervision, then cover the plate with a sheet of paper and runs both through a press under light pressure. For color lithography, separate drawings are made for each color.
Giclee - French for "sprayed ink". A sophisticated process, capable of producing millions of coor susing continuous-tone technology. Giclees are often made from photograhic images of paintings in order to produce high quality, permanent reproductions of them. The extra-fine image resolution possible in this printing process permits retention of a high degree of fine detail from the original image, rendering deeply saturated colors having a broad range of tonal values. A Giclee should be printed either on a fine fabric or archival white paper. After the process of printing, a Giclee specialist should examine the painting with special materials to make any necessary corrections.
Etching - A printing process in which an etching needle is used to draw into a wax ground applied over a metal plate. The plate is then submerged in a series of acid baths, each biting into the metal surface only where unproteced by the ground. The grond is removed, ink is forced into the etched depressios, the unetched surfaces wiped, and an impression is printed. Also, both the design etched on a plate and an impression made from an etched plate.
Woodcut - A print made by cutting a design in a side-grain of a block of wood, also called a woodblock print. The ink is transferred from the raised surfaces to paper.
Impasto - Paint applied in outstanding heavy layers or strokes; also, any thickness or roughness of paint of deep brush marks, as distinguished form a flat, smooth surface. An impasto knife can also be used.
Edition - A group of identical graphic works that are numbered and signed by the artist.
Limited Edition - Graphic works that have a known number of impressions and are signed and numbered by the artist.
Open Edition - An unlimited number of prints.