You will see a list of your highlight categories at the top of the screen under the search bar.

The all tab allows you to view all of your highlights from every category in a single list.

Selecting a different highlight category will allow you to view only that category.

The search field allows you to search for a highlight based on the text.

Simply type a word or phrase.

It will find search results in whichever highlight categories are selected.

Tap any highlight to open in document text.