What is the correct method to adjust the leading of a text frame?

The appropriate method to adjust the leading of a text frame involves using the Character panel to change the number value corresponding to the leading, which refers to the space between lines of text. This panel is specifically designed for adjusting individual character attributes, including leading, with precision. By accessing the Character panel, you can directly input a numerical value or choose from preset options, allowing for fine-tuning of the spacing between lines to achieve the desired visual impact and readability in your text.

While the Paragraph panel is often used for broader adjustments affecting multiple paragraphs, it does not provide the same level of specific control over leading that the Character panel does. Similarly, using the Text tool and right-clicking does not directly provide access to leading adjustments as intuitively or effectively as the Character panel. The Edit menu does not typically contain direct leading adjustment options in Illustrator; adjustments are better managed through designated panels.