All these links refer to HF being deemed unsuitable to be studied in schoolrooms. There are plenty of books that aren't thought apprioriate for classrooms, but making that decision is hardly the same thing as censorship, although I agree it's ridiculous in the case of HF.
Bob001 only offered you a few examples, which happened to relate to classrooms. This was part of the most recent furor over the book, because of its use as a study example in American literature.
Maybe
this will be more enlightening.
Ever since its publication in 1884 The Adventures of Huckleberry Finn by Mark Twain has been controversial with the use of “offensive” language, events, and satire. The book has continually been censored and banned from public libraries and school, in fact, Huckleberry Finn was one of the 10 most frequently challenged books in the 1990s, and the most challenged book in 1995-1996 (Bolton). Censorship of books in general is not okay because books are the richest way for people to “learn and discover things in and about their world” (Bolton). The novel has been banned from multiple libraries, uses some language that will forever be debated, causes a mix of personal and political issues, and is actually being republished.
If you refer to that link you will learn that it was banned from the Public Library of Concord, MA as far back as 1885, and from the children's section of the Brooklyn Public Library in 1902.
I seem to recall having seen somewhere an ALA compilation of the many times and places where
Huck had been successfully banned, as well as those where the attempt to ban it had been made. But my first cursory attempt to locate that on the web for this post was unsuccessful.
Be assured, it has not been objected to
only for use in classroom studies. In fact, that is relatively recent. It has been banned in school and public libraries, and many attempts have been made to ban it in others.
One thing which I find interesting is the various different
reasons for the banning.
For example. The two early public library bannings I mentioned above were not because of the use of uncomfortable or potentially divisive words like the "N" word, which nobody saw any problems with because they were common parlance at the time, but rather for depictions of coarse language and behavior which might exert a bad influence on and encourage imitation by the children who read it.