Venice’s new mayor, Luigi Brugnaro, has banned children’s books containing “themes of homosexuality and disability” from schools as part of his campaign promise.

After thousands of copies of children’s books such as And Tango Makes Three, a book about a baby penguin parented by two male penguins in New York’s Central Park Zoo, were released into schools by the last administration, the mayor’s website released a statement that detailed its decision to recall the books: “to be able to establish without haste and with complete understanding of the issue whether they are, or indeed are not, suitable for children of preschool age.”

In response to the ban, Venice’s libraries have encouraged its patrons to read the banned titles by putting them in their shop windows with a sign: “Blacklisted books, be a rebel, read them.”

Camilla Seibezzi, a councilor who helped introduce the books in the first place, has accused the new mayor of “censorship.” “These books were made available to teachers, they weren’t imposed on schools,” she said to the Telegraph.