Records requests to nearly 100 school districts in the Houston, Dallas, San Antonio and Austin regions — a small sampling of the state’s 1,250 public school systems — revealed 75 formal requests by parents or community members to ban books from libraries during the first four months of this school year.

In comparison, only one library book challenge was filed at those districts during the same time period a year earlier, records show. A handful of the districts reported more challenges this year than in the past two decades combined.

All but a few of the challenges this school year targeted books dealing with racism or sexuality, the majority of them featuring LGBTQ characters and explicit descriptions of sex. Many of the books under fire are newer titles, purchased by school librarians in recent years as part of a nationwide movement to diversify the content available to public school children.

Read more at NBC News