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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Remaining very windy with gales. Rain soon clearing, with sunny intervals developing.
Outbreaks of rain, sometimes heavy, will soon clear. Sunshine and scattered showers will follow. Mainly dry later.
Localised gales will develop across parts of the region tonight. Tomorrow there will be sunshine and scattered showers.