The Nsubjettiness FastJet contrib was written and is maintained and developed by: Jesse Thaler Ken Van Tilburg Christopher K. Vermilion TJ Wilkason Questions and comments should be directed to: jthaler@jthaler.net. For physics details, see: Identifying Boosted Objects with N-subjettiness. Jesse Thaler and Ken Van Tilburg. JHEP 1103:015 (2011), arXiv:1011.2268. Maximizing Boosted Top Identification by Minimizing N-subjettiness. Jesse Thaler and Ken Van Tilburg. JHEP 1202:093 (2012), arXiv:1108.2701. New in v2.0 is the winner-take-all axis, described in: Jet Shapes with the Broadening Axis. Andrew J. Larkoski, Duff Neill, and Jesse Thaler. JHEP 1404:017 (2014), arXiv:1401.2158. as well as in unpublished work by Gavin Salam. ----------------------------------------------------------------------