The article is https://www.auschwitz.org/en/museum/new ... ,1688.html
It is reasonable to label "The Tattooist of Auschwitz" a disgraceful Holocaust exploitation job.The book [by Heather Morris] was promoted as a "true story". In practice, however, the text's relation to the realities of the camp was at least questionable, and the historical accuracy was not merely questionable but false...
The errors documented...indicate the author's deficiency in historical knowledge and research skills..."
Unfortunately Heather Morris has sold millions of copies of her gross distortions and exaggerations.