JPEG: an acronym for "Joint Photographic Experts Group" is a commonly used standard method of compressing photographic images on the Web. JPEG graphics are capable of reproducing a full range of color while still remaining small enough for Web use.
Justified type: in typography, Text spaced out between words to create columns with both edges flush or evenly aligned. With narrow columns, justification can create awkward gaps. However, with wide columns, justification can add elegant symmetry.
Juxtaposition: the act of placing or positioning items in the image area side by side or next to one another to illustrate some comparison.