Which book's do you have? If I remember correctly:
- one is in alley
- two (?) are in vending machine
- one in a HQ , you will get it after cutscene
- and one is in cafe’s toilet.
I have the one in the alley, the one at the top of the town with the view, the one from the vending machine, and the one in the hq, i haven't found one at the cafe's toilet, hopefully its not bugged
