Read this excerpt from an article titled "dangerous ideas": in most cases, books are challenged or banned because they introduce ideas or topics some people would prefer not to examine, or address issues that some find difficult to think and talk about. for example, many people object to books they consider to be obscene because they oppose the use of swear words and vulgar language in the book, or because ideas expressed in the book about race, gender, social class, religion, or drugs don't align with their values. what is the author's purpose in this excerpt?

The purpose of the author to write this excerpt is the mention various reasons why the books are being banned especially the books upon the dangerous ideas.

Reasons why books are banned?

The books are banned as they might show a figure of discrimination amongst the gender, caste, or race.

The ideas expressed in the books can hurt any of the community in the society.

The book mentions such words or phrases that can be offensive in society while reading.

The books can mention such a tone of speech that cannot be understood by any of the readers.

The ideas mentioned in the books do not align with the values.

Therefore, the author wrote this excerpt to inform that there are various dangerous ideas that a writer can mention in their books but they are not suitable for society.

Learn more about banning the books here:

https://brainly.com/question/8789342