The American Library Association has released a list of the graphic novels which have received the most challenges, as part of Banned Books Week (September 25-Oct. 2), according to the Huffington Post.  A challenge is an attempt to remove or restrict materials, based upon the objections of a person or group.

Those graphic novels along with the reasons for challenges are:

Absolute Sandman

Anti-Family, Offensive Language, Unsuited to Age Group

Blankets

Sexually Explicit content, Other (unspecified).

Bone (series)

Sexually Explicit content, Offensive Language, Unsuited to Age Group, Drugs.

Fun Home

Sexually Explicit Content

Maus

Anti-Ethnic

Pride of Bagdad

Sexually Explicit Content

Tank Girl

Nudity and Violence

The Dark Knight Strikes Again

Sexually Explicit Content

The League of Extraordinary Gentlemen: The Black Dossier

Sexually Explicit Content and Unsuited to Age Group

Watchmen

Unsuited to Age Group