iBooks 1.5 includes new fonts and ways to customize your reading experience, including a night theme which switches the display to white text on a black background. Besides providing you with excellent readability in low light, it also significantly reduces glare than might distract your “ready to go to sleep” companion if you’re reading in bed. To activate it, tap the Font icon in the controls at the top of the page, then the Themes button, and then Night (if the controls at the top aren’t visible, tap the page. Tapping it again will hide them). On the iPad there’s also a Full Screen switch at the bottom of the Themes list which hides the graphical elements that frame the text within a virtual book and gives you a few more words to the page.