First of all, if pirated books are not proofread, there may be typos, which will mislead children and affect the accuracy of their future literacy. Secondly, pirated books usually take the form of remake, with unclear images, weak words and poor printing quality. For children in visual development, frequent contact with such books with unclear printing will easily affect their eyesight, which will easily lead to visual fatigue and affect their eyesight.
Pirated books affect children's brain development. Many brightly colored pirated picture books may contain excessive heavy metal elements such as lead, which will enter the human body through children's hands and mouth contact.
A report on the detection of solid matter commissioned by the Chinese Society of Environmental Sciences by Tsinghua University Environmental Quality Testing Center shows that the lead content of some pirated books is 100 times higher than that of similar genuine books. In genuine books, hexavalent chromium is basically not detected, while in pirated books, hexavalent chromium is generally detected. Many pirated booksellers use substandard paper, ink and glue to reduce costs.
The World Health Organization found that high-concentration lead exposure can damage the brain and central nervous system, leading to coma, convulsions and even death. Children who recover from this poisoning often have mental disorders and behavioral disorders. Even if they do not cause obvious symptoms, they may cause a series of injuries to multiple systems of the body. Lead will especially affect children's brain development, leading to behavioral changes such as decreased IQ, shortened attention time, decreased academic performance and increased antisocial behavior, and this effect is irreversible.