In many countries, censorship, blocking of internet access and internet content for political purposes are still part of everyday life. Will filtering, blocking, and hacking replace scissors and black ink? This book argues that only a broader understanding of censorship can effectively protect freedom of expression.

For centuries, church and state controlled the content available to the public through political, moral and religious censorship. As technology evolved, the legal and political tools were refined, but the classic censorship system continued until the end of the 20th century....