The reading menu lets you adjust font size, view the table of contents, and more. You can use the Reading Menu while reading. 

1. While reading, tap the middle of the screen. 
   The Reading menu will appear.
   
2. Tap an icon from the Reading Menu:
   
   

   Icon	Description
   	Back icon: Go back to the Home screen.
   	Screen lock icon: Lock your eReader's screen orientation (select models only).
   	ComfortLight icon: Brighten or dim your screen (select models only).
   	Font icon: Make the text larger or smaller and adjust font styling.
   	Reading stats icon: See your book reading progress.
   	Table of contents icon: See the table of contents.
   	Reading Settings icon: Adjust onscreen controls, page appearance and more.
   	Menu icon: Write a review, see book details, and more.
   	Chapter back icon: Go to the previous chapter.
   	Chapter forward icon: Go to the next chapter.
   	Circle icon: Drag to skim through pages.
   	Dot icon: Tap to go back to a previous page you've opened.
   	Search icon: Tap to search for keywords in your book.
   	Annotation icon: Tap to see the notes and highlights you've created.