Public libraries without the bookshelves

Imagine a library without books. Across the US public libraries are going digital.

The first purpose-built "bookless" public library is due to open in Texas later this year and in the US capital, the first virtual reading room replaces books with computers and smart technology.

Some of the nation's most famous institutions are also collaborating in a massive online project - the Digital Public Library of America - a single digital access point for information about the nation's historical treasures.

Jane O'Brien explores the future of a bookless world.