A book about African-Puerto Rican Major League Baseball (MLB) legend Roberto Clemente cannot currently be found on public school library shelves in Duval County, Florida.

“The book 'Roberto Clemente: Pride of the Pittsburgh Pirates' by Jonah Winter and Raúl Colón, and other books on Latino figures such as the late Afro-Cuban salsa singer Celia Cruz and judge Sonia Sotomayor, are among the more than 1 million titles that have been 'covered or stored and retired for student use' in the Duval County Public Schools District,” according to Academic Director Paula Renfro for NBC News.

School officials are in the process of determining whether such books comply with state laws and can be included in school libraries.

Florida Governor Ron DeSantis signed legislation last year that requires schools to rely on certified media experts to approve which books can be integrated into classrooms. Guidance on how this would be implemented was provided to schools in December.

Books must align with state standards, such as not teaching K-3 students about identity of gender and sexual orientation; not teaching critical race theory, which examines systemic racism in American society in public schools; and not include references to pornography and discrimination, as per the school district.

In January, 52 Duval-certified media specialists began reviewing about 1.5 million book titles, Sonya Duke-Bolden, a spokeswoman for the public school district, told NBC News. So far, around 2,800 books have been approved by media experts.

PEN America, a nonprofit group that advocates for free expression in literature, said in December that 176 elementary schoolbooks from its Essential Voices collection were among the titles removed from Duval County public school libraries.

Of the books pulled from Duval County, more than 30 were by Latino authors and illustrators or centered on Latino characters and narratives. Among them were “Celia Cruz, Queen of Salsa” by Veronica Chambers and Julie Maren, “Sonia Sotomayor (Series Women Who Broke the Rules)” by Kathleen Krull and Angela Dominguez, and the book Clemente de Winter, according to NBC.

Roberto Clemente Jr., the Pittsburgh Pirates player’s son, told NBC News that he owns the book and that it was written for K-3 children.

“His story is his story. He went through racism. It's something that cannot be changed," said Clemente Jr., who added that he hopes his father's life story and legacy will empower people of all ages.

LatinoJustice PRLDEF, a Latino civil rights organization based in New York, criticized the Duval school district for removing Clemente's book because of its "references to racism and discrimination."

“Clement died in 1972 when his plane crashed off the coast of Puerto Rico while delivering emergency supplies to earthquake victims in Nicaragua. He was 38 years old. His humanitarian efforts are perhaps his greatest legacy, aside from his professional baseball career. Clemente became a posthumous Baseball Hall of Famer with exactly 3,000 hits, four National League hitting titles, 12 Golden Gloves, an MVP award, two World Series championships, and 15 All Star appearances.

“Clement frequently denounced racism and discrimination in his native Spanish language and spoke publicly about his experiences as a black Latino rising through the ranks of baseball during the civil rights movement. He even spoke out on political and social issues alongside Martin Luther King Jr.”, according to NBC.

Celia Cruz, known as the Queen of Salsa, was one of the most celebrated Latin music artists of the 20th century. Sotomayor is the first Latina and third woman to serve on the Supreme Court.