Accordion fold :
  Bindery term, two or more parallel folds which open like an accordion.

Basis weight :
  Weight in pounds of a ream of paper cut to the basic size for its grade.
Bind :
  To fasten sheets or signatures with wire, thread, glue, or by other means.
Bindery :
  The finishing department of a print shop or firm specializing in finishing printed products.
Blanket :
  The thick rubber mat on a printing press that transfers ink from the plate to paper.
Bleed :
  Printing that goes to the edge of the sheet after trimming.
Blind embossing :
  An image pressed into a sheet without ink or foil.
Blueline :
  A blue photographic proof used to check position of all image elements.
Bond paper :
  Strong durable paper grade used for letterheads and business forms.
Brightness :
  The brilliance or reflectance of paper.
Burn :
  Exposing a printing plate to high intensity light or placing an image on a printing plate by light.

Carbonless :
  Pressure sensitive writing paper that does not use carbon.
Camera-ready copy :
  Print ready mechanical art.
Coated paper :
  A clay coated printing paper with a smooth finish.
Collate :
  A finishing term for gathering paper in a precise order.
Color correction :
  Methods of improving color separations.
Color matching system :
  A system of formulated ink colors used for communicating color.
Color separations :
  The process of preparing artwork, photographs, transparencies, or computer generated art for printing by separating into the four primary printing colors.
Comb bind :
  To plastic comb bind by inserting the comb into punched holes.
Continuous-tone copy :
  Illustrations, photographs or computer files that contain gradient tones from black to white or light to dark.
Contrast :
  The tonal change in color from light to dark.
Copy :
  All furnished material or disc used in the production of a printed product.
Cover paper :
  A heavy printing paper used to cover books, make presentation folders, etc.
Crop :
  To cut off parts of a picture or image.
Crop marks :
  Printed lines showing where to trim a printed sheet.
Crossover :
  Printing across the gutter or from one page to the facing page of a publication.
Cyan :
  One of four standard process colors. The blue color.

Densitometer :
  A quality control devise to measure the density of printing ink.
Density :
  The degree of color or darkness of an image or photograph.
Dot :
  An element of halftones. Using a loupe you will see that printed pictures are made of many dots.
Dot gain or spread :
  A term used to explain the difference in size between the dot on film v paper.
Dummy :
  A rough layout of a printed piece showing position and finished size.

Emboss :
  Pressing an image into paper so that it will create a raised relief.

Flood :
  To cover a printed page with ink, varnish, or plastic coating.
4-color-process :
  The process of combining four basic colors to create a printed color picture or colors composed from the basic four colors.
French fold :
  Two folds at right angles to each other.

Gang :
  Getting the most out of a printing press by using the maximum sheet size to print multiple images or jobs on the same sheet. A way to save money.
Generation :
  Stages of reproduction from original copy. A first generation reproduction yields the best quality.
Ghosting :
  A faint printed image that appears on a printed sheet where it was not intended. More often than not this problem is a function of graphical design.
Gloss :
  A shiny look reflecting light.
Grain :
  The direction in which the paper fiber lie.
Grippers :
  The metal fingers on a printing press that hold the paper as it passes through the press.

Hairline :
  A very thin line or gap about the width of a hair or 1/100 inch.
Halftone :
  Converting a continuous tone to dots for printing.
Hard copy :
  The output of a computer printer, or typed text sent for typesetting.

Image area :
  Portion of paper on which ink can appear.
Imposition :
  Positioning printed pages so they will fold in the proper order.
Impression :
  Putting an image on paper.
Imprint :
  Adding copy to a previously printed page.
Indicia :
  Postal information place on a printed product.

Knock out :
  To mask out an image.

Laid finish :
  Simulating the surface of handmade paper
Laminate :
  To cover with film, to bond or glue one surface to another.
Line copy :
  High contrast copy not requiring a halftone.
Loupe :
  A magnifying glass used to review a printed image, plate and position film.

Magenta :
  Process red, one of the basic colors in process color.
Makeready :
  All the activities required to prepare a press for printing.
Mask :
  Blocking light from reaching parts of a printing plate.
Matte finish :
  Dull paper or ink finish.
Micrometer :
  Instrument used to measure the thickness of different papers.

Negative :
  The image on film that makes the white areas of originals black and black areas white.

Offsetting :
  Using an intermediate surface used to transfer ink. Also, an unpleasant happening when the images of freshly printed sheets transfer images to each other.
Offset paper :
  Term for uncoated book paper.
Ok sheet :
  Final approved color inking sheet before production begins.
Opacity :
  The amount of show-through on a printed sheet. The more opacity or the thicker the paper the less show-through. (the thicker/heavier the paper the higher the cost.)
Outline halftone :
  Removing the background of a picture or silhouetting an image in a picture.
Overrun or overs :
  Copies printed in excess of the specified quantity. (Printing trade terms allow for +-10% to represent a completed order.)

Page count :
  Total number of pages in a book including blanks.
Pica :
  Unit of measure in typesetting. One pica = 1/6 inch.
Plate gap :
  Gripper space. The area where the grippers hold the sheet as it passes through the press.
PMS :
  The abbreviated name of the Pantone Color Matching System.
Point :
  For paper, a unit of thickness equaling 1/1000 inch for typesetting, a unit of height equaling 1/72 inch.
PostScript :
  The computer language most recognized by printing devices.
Pressure-sensitive paper :
  Paper material with self sticking adhesive covered by a backing sheet.
Process blue :
  The blue or cyan color in process printing.
Process colors :
  Cyan (blue), magenta (process red), yellow (process yellow), black (process black).

Ream :
  Five hundred sheets of paper.
Register :
  To position print in the proper position in relation to the edge of the sheet and to other printing on the same sheet.
Register marks :
  Cross-hair lines or marks on film, plates, and paper that guide strippers, platemakers, pressmen, and bindery personnel in processing a print order from start to finish.

Saddle stitch :
  Binding a booklet or magazine with staples in the seam where it folds.
Scanner :
  Device used to scan art, pictures or drawings in desktop publishing.
Score :
  A crease put on paper to help it fold better.
Self-cover :
  Using the same paper as the text for the cover.
Show-through :
  Printing on one side of a sheet that can be seen on the other side of the sheet.
Side stitch :
  Binding by stapling along one side of a sheet.
Specification :
  A precise description of a print order.
Spine :
  The binding edge of a book or publication.
Spoilage :
  Planned paper waste for all printing operations.
Spot varnish :
  Varnish used to hilight a specific part of the printed sheet.
Step-and-repeat :
  A procedure for placing the same image on plates in multiple places.
Stock :
  The material to be printed.
Substrate :
  Any surface on which printing is done.

Text paper :
  Grades of uncoated paper with textured surfaces.
Tints :
  A shade of a single color or combined colors.
Transparency :
  A positive photographic slide on film allowing light to pass through.
Trapping :
  The ability to print one ink over the other.
Trim marks :
  Similar to crop or register marks. These marks show where to trim the printed sheet.
Trim size :
  The final size of one printed image after the last trim is made.

Up :
  Printing two or three up means printing multiple copies of the same image on the same sheet.

Waste :
  A term for planned spoilage.
Watermark :
  A distinctive design created in paper at the time of manufacture that can be easily seen by holding the paper up to a light.
Work and turn :
  Printing one side of a sheet and turning it over from left to right using the same side guides and plate for the second side.
Wove paper :
  A paper having a uniform unlined surface with a smooth finish.