Grammatically Correct: The writer's essential guide to punctuation ...

GRAMMATICALLY CORRECT
subset of what came before, different information on the same level
or a new topic altogether.
One way to achieve this distinctiveness is through capitalization.
For example, the highest level headings could be in all-caps text
(LEVEL ONE HEADING), the next level could have all main words
capitalized (Level Two Heading) and the level below that could have
only the first word capitalized (Level three heading).
You can also distinguish levels of headings through use of different
type sizes, bold or italic versus regular type, centering versus flush
left and more.
• If you are capitalizing all main words in a heading, you must
decide how you will treat hyphenated compounds. Some writers
choose to capitalize the second word of such compounds; others
choose not to.
The Private Lives of Stand-Up Comedians
The Private Lives of Stand-up Comedians
English Poetry of the Mid-Eighteenth Century
English Poetry of the Mid-eighteenth Century
Confessions of a Hard-Core Mah-Jongg Player
Confessions of a Hard-core Mah-jongg Player
LISTS
If items in a vertical list consist of entire sentences, begin each one
with a capital letter, just as you would with any other sentence.
If the items are single words or sentence fragments, the choice
is yours (or your style guide's).
Item 1
Item 2
Item 3
OR item 1
item 2
item 3
Note that you should not ever create a list where some items are
full sentences and others not. See "Achieving Parallel Structure" on
page 223.
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