The book I am talking about is "The Gulag Archipelago"
See the screenshot (marked text) first. If the book has the power to change your memories so you can't distinguish between what you experienced and what you read, isn't that basically manipulation?
I know that something similar is possible for example with altered photos of you childhood that can trick your memories of the time, for example some object that you were told to have but you didn't.
It's basically the Uyghur Genocide rhetoric of 20th century.
That would be the Holodomor myth.