Final answer:
Leading in typography is the vertical space between lines of text, and it is adjustable to affect readability and design aesthetics. The statement that leading controls the space between lines of type is true.
Step-by-step explanation:
The statement is true: leading controls the amount of space between lines of type. Leading is a term used in typography to refer to the vertical space between lines of text. This space is measured from the baseline of one line of text to the baseline of the line above it. Leading is important for readability and aesthetics of text. Adjusting the leading can make a paragraph more compact or more spread out, depending on the requirements of the design or the readability needed for the text.