The Patience S. Latting Northwest Library opened Tuesday after an afternoon ribbon-cutting ceremony.
The 35,000-square-foot structure is home to about 150,000 books, magazines, DVDs and other materials at 5600 NW 122.
Library manager Julie Ballou said the Metropolitan Library System began buying materials in 2006 in anticipation of the library's opening.
Also offered are 48 public computers and another eight for use by children.
The library's children's programs will kick off immediately with programs such as puppet making, Lego robotics, critter tales, a pianist and Gustafer Yellowgold, a multimedia performer.