„Both detailed studies of individual countries and studies with a broad international sweep find that children who come from bookish homes get better grades and perform at a higher level on standardized tests than children who are otherwise comparable on stratification and demographic characteristics but come from families with smaller home libraries.“
Dr. Joanna Sikora u. a., „Scholarly culture: How books in adolescence enhance adult literacy, numeracy and technology skills in 31 societies“. In: „Social Science Research“ 77 (2019), S. 3