- Author: Sean P. Hier
- Language: English
- Year: 2011
- Author: Sean P. Hier Josh Greenberg
- Language: English
- Year: 2009
- Author: Sean P. Hier and Josh Greenberg
- Language: English
- Year: 2009
- Author: Sean P Hier
- Language: English
- Year: 2005
- Author: Sean P Hier
- Language: English
- Year: 2005