There's an interesting and often overlooked text preference that determines how your leading will behave. When you choose Apply Leading to Entire Paragraphs, InDesign makes the leading of the whole paragraph the same, which is almost always a good idea, although it does not apply to paragraphs set to use Auto Leading.
Note that when your text is set to Align to Baseline Grid, changing the leading may result in unpredictable behavior, causing the lines of type to jump to the next baseline grid increment.
Figure 4.14. Apply Leading to Entire Paragraphs preference.
Figure 4.15. Align to Baseline Grid.
Figure 4.16. Leading Increment Preference.
Part I: Character Formats
Going with the Flow
Getting the Lead Out
Kern, Baby, Kern
Sweating the Small Stuff: Special Characters, White Space, and Glyphs
OpenType: The New Frontier in Font Technology
Part II: Paragraph Formats
Aligning Your Type
Paragraph Indents and Spacing
First Impressions: Creating Great Opening Paragraphs
Dont Fear the Hyphen
Mastering Tabs and Tables
Part III: Styles
Stylin with Paragraph and Character Styles
Part IV: Page Layout
Setting Up Your Document
Everything in Its Right Place: Using Grids
Text Wraps: The Good, the Bad, and the Ugly