A small cap is a letter having the form of a capital letter but smaller;
The alphabet in small caps:
- Tʜᴇ ʙᴇsᴛ ʙᴏᴏᴋ
- 1sᴛ ᴇᴅɪᴛɪᴏɴ
We use small caps in sections of text that need emphasis and where a use of uppercase capital letters would appear too intense to the reader.