Featuring a lookbook means adding that lookbook to your profile page. Visitors and clients can view and shop from all the lookbooks that you feature, and you will earn commissions on anything that they buy.
When you create a lookbook, the default is for the look to be featured, as illustrated by the checked box at the bottom of the lookbook creation page. You can choose to uncheck this box when you are creating the look to prevent the look from being added to your profile page.
You can also decide to feature a look at any time. See links below:
You can check to see what looks are featured by visiting your profile.