Which of the following best defines "typography"?

"Typography" is best defined as the art of selecting shapes and sizes for printed text because it encompasses the design and arrangement of typefaces, including considerations of font selection, size, line length, spacing, and overall aesthetic. This discipline is crucial in creating visually appealing and readable printed materials. The process goes beyond mere selection; it influences how the text communicates messages and evokes emotions, contributing to the overall effectiveness of printed communications.

The other options focus on different aspects of design or production that are not specific to typography. For instance, creating images for print pertains more to graphic design and illustration rather than the arrangement of text. A mathematical system for layout design may involve various principles of design and geometry but does not capture the essence of typography. Producing three-dimensional text relates to a specific technique in graphic design rather than the broader field of typography itself. Understanding this definition helps designers appreciate how typography affects the clarity and impact of their printed works.