Chicago is a 5-book series with 5 primary works first released in 2003 with contributions by Karen Rose.
2003 • 15 Readers • 483 pages • 4.2
2004 • 5 Readers • 500 pages • 4.2
2005 • 5 Readers • 517 pages • 4.7
2006 • 5 Readers • 528 pages • 4.3
2007 • 4 Readers • 577 pages • 4.7