There are a total of 11 unique documents that you will need to collect during 1 playthrough:
14:14 -
Document 1 (top drawer of the computer desk in your room)
15:55 -
Document 2 (in the food storage room; on left)
16:25 -
Document 3 (on the right bed in the sick bay)
23:34 -
Document 4 (level 2 first area; left side desk)
24:50 -
Document 5 (classroom, near the top middle of the screen)
28:47 -
Document 6 (Commissioner’s Room - on the desk)
38:15 -
Document 7 (In the suit closet, document in the middle in a box)
41:44 -
Document 8 (Vent area office room; in the top drawer)
41:59 -
Document 9 (Vent area office room; under the lamp on the desk)
52:02 -
Document 10 (Read the medicine bottle label in the medicine cabinet)
56:55 -
Document 11 (At large blue door, look down and to the left to find box with note inside)