A short piece of text pulled out from the main block. It is often put in a box, or put to one side.

A term that describes seeing the printing on the reverse side of a sheet of paper through the front side. Using more opaque paper can fix this problem.

To make minute adjustments in the gutter, or center, margin in order to compensate for the effects of folding within the signature.

1. To decrease the dot size in an image, making it higher resolution.

2. To enhance elements in a photograph by making the darker pixels a little darker, and  the surrounding lighter pixels a little lighter.

Refers to the areas of a photograph which are the darkest. These would be the largest dots in a halftone image.

A line which crosses the end of the main stroke of a typeset letter. Letterforms without serifs are called sans serif. In ancient times, stone masons cutting letters into stone with a chisel added serifs to make a clean ending to the line.

A booklet that has a cover made of the same paper as the inside pages.

Refers to the number of lines per inch in a halftone image.

Refers to an image with a halftone screen. Often, an unwanted pattern is produced when the image is scanned or photographed.

To reduce unwanted patterns when printing a colored image, each color plate’s screens are created to be at a different angle. Generally, they are as follows: 105˚ cyan, 90˚ yellow, 75˚ magenta, and 45˚ black.