Grammar
Style guide 
Title case and sentence case
Title case
With title case, every important word has an initial capital.
The Cat sat on the Mat
Sentence case
With sentence case, only the first word and proper nouns have initial capitals.
The cat sat on the mat.
When to use title or sentence case
Use title case for the titles of books, reports or Acts.
Seven Habits of Effective People
When referring to titles in text, use italics.
Seven Habits of Effective People
These days, headings and subheadings within documents are usually in sentence case. This is preferable because:
- sentence case looks cleaner
- you don't have to worry about which words are 'important'
- you are more likely to be consistent.
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