In full-screen view, you can see your photos using every inch available on your display. Being able to view and edit your photos in a large, high-resolution view means you can make more detailed and accurate changes. It’s also easier to organize your photos and create slideshows, books, cards, and calendars.
In full-screen view, you can’t see the Source list, but you can still access all your photos and perform the same functions using the toolbar at the bottom of the window. To see the iPhoto menu bar, move your pointer to the top of the screen.
To change to full-screen view, click the Full Screen button at the top-right corner of the iPhoto window.

To leave full-screen view, move your pointer to the top of the screen, and then click the Full Screen button that appears in the top-right corner.
