An attempt to remove or restrict materials, based upon the objections of a person or group. A banning is the removal of those materials. Challenges do not simply involve a person expressing a point of view; rather, they are an attempt to remove material from the curriculum or library, thereby restricting the access of others.
A change in the access status of material, based on the content of the work and made by a governing authority or its representatives. Such changes include exclusion, restriction, removal, or age/grade level changes.
The right of every individual to both seek and receive information from all points of view without restriction. It provides for free access to all expressions of ideas through which any and all sides of a question, cause or movement may be explored.
Information retrieved from: https://libguides.ala.org/Researchingchallengedbooks/Basics
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Information retrieved from: https://www.ala.org/advocacy/bbooks/frequentlychallengedbooks/decade2019
A book that is banned or censored is done so for the content within the pages. There are a few common reasons that books have been banned or censored in schools, libraries, and book stores.
Many books have been banned or censored in one or more of these categories due to a misjudgment or misunderstanding about the books contents and message. Although a book may have been banned or labeled a certain way, it is important that the reader makes his/her own judgements on the book. Many books that have been banned or censored later were dropped from banned books lists and were no longer considered controversial. For this reason, banned books week occurs yearly to give readers a chance to revisit past or recently banned books to encourage a fresh look into the controversies the books faced.
Intellectual Freedom Manual by 
