This is the City Library in Salt Lake City, Utah, USA. On the back it says: "Salt Lake City's newest landmark is a truly awe inspiring place for the community to gather, and learn. This new architectural masterpiece was finished in 2003 and will be a place of young and old to celebrate Salt Lake City's culture and diversity."
I found some more info about this library as well:
The Salt Lake City Public Library has been located in a few different places. After celebrating the library's 100th anniversary in early 1998, an $84 million library bond was approved to move the library north half a block to its current location. The firm of Moshe Safdie and Associates and local architects in VCBO Architecture designed the building, which opened to the public on February 8, 2003. The Salt Lake City main library is a 22,300 m² five-story tall, wedge-shaped building. The library has a collection of over 500,000 books as well as subscriptions to over 60 newspapers and magazines and 163 internet capable computers. The whole library depends on natural lighting, reducing the need of lights in the library. A huge five story glass wall is where most of the light comes from.