What does the term "leading" refer to in typography?

The term "leading" in typography specifically refers to the vertical space between lines of text. This spacing is crucial for readability and can significantly affect the overall appearance of a block of text. By adjusting the leading, designers can create a more open or tighter feel in their text layouts, influencing how easy it is for readers to navigate through the content.

Proper leading ensures that lines of text do not crowd each other, allowing for a more comfortable reading experience. Conversely, too little leading can make text appear cramped and harder to read, while too much leading can lead to a disjointed feel. Therefore, understanding and utilizing leading effectively is an essential skill in interactive design and typography.