You use different fonts and various styles to help the reader navigate the material.

Typically an italicized word or phrase can be used to emphasize that word or phrase. A word or phrase in boldface is used to be an anchor - items that help the reader skim the material and find specific spots.

• The italic formating tag is <I>, which is paired with </I>.
  See an example

• The boldface formating tag is <B>, which is paired with </B>.
  See an example

• The underline formating tag is <U>, which is paired with </U>.
  See an example

• The monospace tag is <TT>, which is paired with </TT>.
  See an example