Plain-language guides to literature and writing

A History of Banned Books and the Debates Around Them

banned books history

Trying to make sense of book bans? The banned books history that records can document shows challenges moving from single parents to organized groups, with 4,235 titles challenged in 2025.

For the wider picture, see our section on literature and society.

Item Value
Unique titles challenged in 2025 4,235 titles
Highest year documented (2023) 4,240 titles
Yearly average, 2001-2020 273 unique titles
Challenges from pressure groups and officials, 2025 92%
Challenges from individual parents, 2025 Less than 3%
Books banned from libraries, 2025 5,668 books

These figures come from the American Library Association’s book ban data, released during National Library Week 2026. Figures can change as new reports arrive, so check the source before you rely on them.

What two decades of records show

The longest steady record comes from the American Library Association (ALA), whose Office for Intellectual Freedom compiles reports from library professionals and from news stories across the United States. From 2001 to 2020, its data show an annual average of 273 unique titles challenged, according to ALA’s book ban data.

Then the numbers jumped. As of ALA’s April 2026 release, 2025 was the second-highest year it had documented, with 4,235 unique titles challenged. The record is 4,240, set in 2023, and ALA describes the recent surge as the continuation of an organized effort that began in 2021.

The same release adds several headline figures for 2025:

  • 713 attempts to censor library materials and services, 487 of which targeted books.
  • 5,668 books banned from libraries, which ALA puts at 66% of the total challenged.
  • 920 more books restricted through steps such as relocation or requiring parental permission.

ALA says this is the highest number of titles censored in one year, and the highest rate of challenges ending in censorship, from 1990 to 2025. The detail sits on the ALA data page.

Who is challenging books now?

Before 2020, ALA says, the vast majority of challenges to library books came from a single parent who wanted to remove or restrict a book their child was reading. That picture has changed sharply, and pressure groups now drive most of the activity.

In 2025, 92% of all book challenges were initiated by pressure groups, government officials and decision makers, up from 72% in 2024. Less than 3% originated from individual parents, as ALA reports.

The scale of that shift shows in the averages:

  • From 2001 to 2020, pressure groups and the decision makers they influenced tried to remove an average of 46 titles per year.
  • From 2021 to 2025, they targeted an average of 5,238 titles annually.

The debate has two sides, and both are worth stating plainly. ALA describes a well-organized movement that aims to remove books about race, history, gender identity, sexuality and reproductive health. In its April 2026 report, KTVU says activists such as Moms for Liberty advocate “parental choice” in deciding what schools and libraries should make available.

Politics has followed. According to the same KTVU report, Florida, Texas and Utah are among the many states that have called for books to be banned or passed restrictive legislation. It also says an Iowa appellate court ruled that the state can enforce a law that limits teachers from talking about LGBTQ+ topics with students in kindergarten through the sixth grade and bans some books.

ALA President Sam Helmick framed the library side this way: “Libraries exist to make space for every story and every lived experience.” If you want a different angle on writers and public debate, you can explore the work of harlem renaissance writers.

What gets challenged, and on what grounds

KTVU, summarizing the ALA’s findings, lists the most common grounds given by people who want books removed:

  • Claims of illegal obscenity for minors, which the list’s authors characterize as false.
  • LGBTQIA+ representation in the book.
  • How issues such as race, racism, social justice and diversity are discussed.
  • Political or religious views that the challengers oppose.

The pattern shows in the numbers. Of the unique titles challenged in 2025, 1,671 (39%) represent the lived experiences of LGBTQIA+ people and people of color, according to ALA’s figures.

ALA also publishes a ranking of the most challenged books. Topping the 2025 list, as KTVU reported, was the 2006 young adult novel Sold by Patricia McCormick. KTVU describes it as the story of a 13-year-old who leaves her mountain home in Nepal believing she has found a job as a maid, but ends up in the sex trade in India.

The top of the list reads:

  1. Sold, by Patricia McCormick
  2. The Perks of Being a Wallflower, by Stephen Chbosky
  3. Gender Queer: A Memoir

The full list names 11 titles because of ties. It mixes recent young adult fiction with older novels such as A Clockwork Orange by Anthony Burgess and Looking for Alaska by John Green.

Where banned books are challenged

Libraries are not all affected equally. Attempts to censor school library materials accounted for 80% of the total titles targeted in 2025, yet public libraries continued to see more overall censorship attempts than any other location type, ALA says.

Many of these challenges arrive as lists. Attempts in which challengers submitted lists of books, frequently titles they had not read, made up 94% of all titles challenged. Among titles targeted in school library collections, 98% were in multi-title challenges.

banned books history Stacked books
Books are stacked at different angles in a dimly lit close-up.

How far can the numbers be trusted?

ALA is open about the limits. Because many challenges are never reported to the association or covered by the press, its data is only a snapshot of book censorship in a given year. KTVU adds that the list is based on reports filed by library professionals and on news articles, and is likely not complete.

Definitions matter too. ALA describes a challenge as an attempt to remove or restrict access to material or services based on the objections of a person or group. A challenge is therefore not the same as a ban, and KTVU notes that some of the challenged titles ended up being upheld.

When you read any banned books history, a few habits help:

  1. Check who compiled the figures and how they collected reports.
  2. Separate challenges, restrictions and bans, since they are counted differently.
  3. Note whether a number counts titles or challenges.
  4. Look at the date of the source, because yearly figures are revised and updated.

Print is only one way stories travel, and the guide to oral storytelling traditions looks at how they move without it.

Frequently asked questions

What is the difference between a challenge and a ban?

Show answer

A challenge is an attempt to remove or restrict access to material based on the objections of a person or group. A ban means the book is actually removed. ALA documented 5,668 books banned from libraries in 2025, plus 920 more restricted through relocation or parental-permission rules.

Which book was challenged most in 2025?

Show answer

According to the ALA list as reported by KTVU in April 2026, the most challenged title was Sold by Patricia McCormick, followed by The Perks of Being a Wallflower by Stephen Chbosky.

Do individual parents drive most book challenges?

Show answer

Not in ALA’s 2025 data. Less than 3% of challenges came from individual parents, while 92% were initiated by pressure groups, government officials and decision makers.

Do these figures capture every challenge?

Show answer

No. ALA says many challenges are never reported to it or covered by the press, so its figures are a snapshot rather than a full count.