(Portland, OR) -- A Portland-area school district is banning the book "Lolita." The Canby School District says it is pulling the classic novel from its middle school and high school libraries. The district had originally banned a total of 36 books back in March, prompting protests from students. The ACLU of Oregon filed a public records request earlier this month seeking information on the district's process for reviewing the banned books. The district says "Lolita" is now the only book that will be banned. The 1955 novel written by Russian-American Vladimir Nabokov tells the story of a pedophile who becomes sexually obsessed with a young girl.