Due to the radiation torture for 7-8 years as part of the government SLAVERY racket, the short term memory is sometimes affected and to prevent memory robbery, the domain investor prefers to note down data in notebooks.
However the notebooks have laminated covers with labels, When a gel ink pen is used to write anything on the cover , it will come off easily
So additional labels have to be used so that the notebooks are easily identified
The book seller should not laminate the book, so it is cheaper and easier to write on the label