Line length is pretty much what it says on the tin. It is the maximum length of a single line of text before the next word in a sentence 'wraps' onto the next line underneath. This is correctly referred to as the 'measure' of a paragraph which seems ...
The term leading was coined way back when letters were cast as separate blocks of lead. When setting a line of copy the vertical space between the lines was created by adding thin strips of lead stacked together to create the amount of space required before adding the next ...
Tracking is the act of adjusting the space between the letters of a word to increase its legibility. This is massively overlooked since the advent of computer-based desktop publishing, but historically, when the wisened old monks used to use lead blocks with letters carved out of one side to ...