As of 2020, the top ten reasons books were challenged and banned included sexual content (92.5% percent of books on the list); offensive language (61.5%); unsuited to age group (49%); religious viewpoint (26%); LGBTQIA+ content (23.5%); violence (19%); racism (16.5%); drugs, alcohol, and smoking (12.5%); "anti-family" content (7%); and ... More @Wikipedia
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