Members of Library of Birmingham staff, council representatives and Carillion employees gathered in the dramatic rotunda which will house the five-storey book wall.
The rotunda, at the very heart of the library, features a series of cantilevered circular balconies each providing access to a different part of the shelves that comprise the book wall.
Escalators zigzag across the space, providing stunning views throughout the library and access for all to over 400,000 books, more than double the amount currently on show at Central Library.
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Brighter but colder conditions with scattered showers. Showers turning increasingly to sleet and snow throughout the day.
Early rain will soon be followed by blustery and increasingly wintry showers, giving way to a brighter but colder afternoon.
A largely mild, cloudy night with outbreaks of rain becoming more persistent from the northwest, perhaps turning heavy in places too.