O'Reilly NOOK Manual page 102

• Brightness. Tap to launch a slider that lets you adjust the screen bright-
ness. Slide it to the right to make the screen brighter, and to the left to
make it dimmer.
• Discover. Tap here to see books related to the one you're reading—for
example, books by the same author. You'll often see unrelated books as
well, such as the B&N Top 100. As with everywhere else on the NOOK, tap
a book to see details.
NOTE
If you download a book to your PC or Mac, and then transfer it to your NOOK (page 282),
the Discover feature may not be available; in that case the icon will appear dimmed.
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