[
  {
    "title": "History",
    "items": [
      {
        "title": "Origins of Ninjutsu",
        "slug": "origins-of-ninjutsu"
      },
      {
        "title": "Emergence of the Ryū",
        "slug": "emergence-of-the-ryu"
      },
      {
        "title": "Famous Ninja",
        "slug": "famous-ninja"
      },
      {
        "title": "Ninja Biographies",
        "slug": "ninja-biographies"
      },
      {
        "title": "Iga-Ryū",
        "slug": "iga-ryu"
      },
      {
        "title": "Kōga-Ryū",
        "slug": "koga-ryu"
      },
      {
        "title": "Iga no Ran",
        "slug": "iga-no-ran"
      },
      {
        "title": "Invasion of Iga",
        "slug": "invasion-of-iga"
      },
      {
        "title": "Demise",
        "slug": "demise"
      },
      {
        "title": "Modern History",
        "slug": "modern-history"
      }
    ]
  },
  {
    "title": "Organization & Training",
    "items": [
      {
        "title": "Organization of the Ryū",
        "slug": "organization-of-the-ryu"
      },
      {
        "title": "Training of the Ninja",
        "slug": "training-of-the-ninja"
      },
      {
        "title": "Kunoichi",
        "slug": "kunoichi"
      },
      {
        "title": "Bansenshūkai",
        "slug": "bansenshukai"
      }
    ]
  },
  {
    "title": "Body Training",
    "items": [
      {
        "title": "Taijutsu",
        "slug": "taijutsu"
      },
      {
        "title": "Combat Rules",
        "slug": "combat-rules"
      },
      {
        "title": "Combat Factors",
        "slug": "combat-factors"
      },
      {
        "title": "Jūnantaisō",
        "slug": "junan-taiso"
      },
      {
        "title": "Training Factors",
        "slug": "training-factors"
      },
      {
        "title": "Body Weapons",
        "slug": "body-weapons"
      },
      {
        "title": "Toughening Up",
        "slug": "toughening-up"
      },
      {
        "title": "Atemite",
        "slug": "atemi-te"
      },
      {
        "title": "Kamae",
        "slug": "kamae"
      },
      {
        "title": "Ukemi",
        "slug": "ukemi"
      },
      {
        "title": "Shinobi Iri",
        "slug": "shinobi-iri"
      }
    ]
  },
  {
    "title": "Weapons & Tools",
    "items": [
      {
        "title": "Weapons",
        "slug": "weapons"
      },
      {
        "title": "Water Tools",
        "slug": "water-tools"
      },
      {
        "title": "Burglary Tools",
        "slug": "burglary-tools"
      },
      {
        "title": "Climbing Tools",
        "slug": "climbing-tools"
      },
      {
        "title": "Fire Tools",
        "slug": "fire-tools"
      },
      {
        "title": "Ninja Clothing",
        "slug": "ninja-clothing"
      },
      {
        "title": "Miscellaneous Equipment",
        "slug": "miscellaneous-equipment"
      },
      {
        "title": "Inrō – Travel Pharmacy",
        "slug": "inro"
      }
    ]
  },
  {
    "title": "Mental Powers",
    "items": [
      {
        "title": "Mikkyō",
        "slug": "mikkyo"
      },
      {
        "title": "Sanmitsu",
        "slug": "sanmitsu"
      },
      {
        "title": "Kuji-in",
        "slug": "kuji-in"
      },
      {
        "title": "Godai",
        "slug": "godai"
      },
      {
        "title": "Gogyō",
        "slug": "gogyo"
      },
      {
        "title": "Tenchijin",
        "slug": "tenchijin"
      },
      {
        "title": "Consciousness and Spirit",
        "slug": "consciousness-and-spirit"
      },
      {
        "title": "The Seventh Sense",
        "slug": "the-seventh-sense"
      },
      {
        "title": "Enlightenment",
        "slug": "enlightenment"
      },
      {
        "title": "Daoism",
        "slug": "daoism"
      }
    ]
  },
  {
    "title": "Strategy & Tactics",
    "items": [
      {
        "title": "Goton pō",
        "slug": "gotonpo"
      },
      {
        "title": "Onshin jutsu",
        "slug": "onshinjutsu"
      },
      {
        "title": "Shichi hō de",
        "slug": "shichi-ho-de"
      },
      {
        "title": "Chōhō",
        "slug": "choho"
      },
      {
        "title": "Heihō",
        "slug": "heiho"
      },
      {
        "title": "Bōryaku",
        "slug": "bo-ryaku"
      },
      {
        "title": "Tōiri",
        "slug": "toiri"
      },
      {
        "title": "Chi kai ri",
        "slug": "chikairi"
      }
    ]
  },
  {
    "title": "The Legacy of the Ninja",
    "items": [
      {
        "title": "Takamatsu Toshitsugu",
        "slug": "takamatsu-toshitsugu"
      },
      {
        "title": "Hatsumi Masaaki",
        "slug": "hatsumi-masaaki"
      },
      {
        "title": "Bujinkan",
        "slug": "bujinkan"
      },
      {
        "title": "Guidelines of Bujinkan",
        "slug": "guidelines-of-bujinkan"
      },
      {
        "title": "Togakure-Ryū",
        "slug": "togakure-ryu"
      },
      {
        "title": "Gyokko-Ryū",
        "slug": "gyokko-ryu"
      },
      {
        "title": "Kukishinden-Ryū",
        "slug": "kukishinden-ryu"
      },
      {
        "title": "Shinden-fudo-Ryū",
        "slug": "shinden-fudo-ryu"
      },
      {
        "title": "Gyokushin-Ryū",
        "slug": "gyokushin-ryu"
      },
      {
        "title": "Koto-Ryū",
        "slug": "koto-ryu"
      },
      {
        "title": "Takagi-yoshin-Ryū",
        "slug": "takagi-yoshin-ryu"
      },
      {
        "title": "Gikan-Ryū",
        "slug": "gikan-ryu"
      },
      {
        "title": "Kumogakure-Ryū",
        "slug": "kumogakure-ryu"
      }
    ]
  },
  {
    "title": "Rules & Philosophy",
    "items": [
      {
        "title": "Essence of Ninjutsu",
        "slug": "essence-of-ninjutsu"
      },
      {
        "title": "The Rules of the Ninja",
        "slug": "the-rules-of-the-ninja"
      },
      {
        "title": "The 5 Commandments of the Ninja",
        "slug": "the-5-commandments-of-the-ninja"
      },
      {
        "title": "18 Training Levels",
        "slug": "18-training-levels"
      },
      {
        "title": "Ninpō Sanjūrokkei",
        "slug": "ninpo-sanjurokkei"
      },
      {
        "title": "Ninja no Hachimon",
        "slug": "ninja-no-hachimon"
      }
    ]
  },
  {
    "title": "Appendix",
    "items": [
      {
        "title": "Chronology",
        "slug": "chronology"
      },
      {
        "title": "Downloads",
        "slug": "downloads"
      },
      {
        "title": "Recommendations",
        "slug": "recommendations"
      },
      {
        "title": "Glossary",
        "slug": "glossary"
      },
      {
        "title": "Colophon",
        "slug": "colophon"
      }
    ]
  }
]
