Ulysses Moore is a 12-book series with 12 primary works first released in 2004 with contributions by Pierdomenico Baccalario and Bożena Fabiani.
2004 • 4 Readers • 221 pages • 4
2005 • 3 Readers • 257 pages • 3.5
2006 • 4 Readers • 286 pages • 3
2007 • 3 Readers • 295 pages • 4
2009 • 3 Readers • 250 pages • 3
2009 • 2 Readers • 314 pages • 3
2007 • 2 Readers • 288 pages • 2