To keep track of all the current enemies of their village, each ninja carries a handbook. This book lists those ninja who pose a danger to their village, including its missing-nin and foreign ninja. A so called "whos-who" guidebook for the ninja. Those listed are ranked based on the level of dangerousness, with the most deadly attaining an "S-Rank."
Ninja such as Jiraiya or Tsunade that are not wanted for any evil crimes may not be in everyone's Bingo book. However, due to their skill level they are probably seen as dangerous and in the Bingo book of non-Leaf ninja.
How to read the Bingo Book
Since the ANBU might not know exact information there may be some difference to the targets actual information.
Note: The numbers in Taijutsu, Genjutsu, Chakra Control, Ninjutsu, long distance, and short distance; these are to show how dangerous or skilled in that style the target is. Please refer below to see how dangerous each number is:
- 1 - Weak
- 2 - Below Average
- 3 - Average
- 4 - Strong
- 5 - Extremely Dangerous
If N/A or Unknown is in any location it means that the ANBU do not know anything about that area on the target. If it is in the long distance or short distance location it means that any ninja who may have fought the target did not survive to tell how well that ninja fights.