Current Controversies Each anthology is composed of a wide spectrum of primary sources written by many of the foremost authorities in their respective fields. This unique approach provides students with a concise view of divergent opinions on each topic. Extensive book and periodical bibliographies and a list of organizations to contact are also included. Features and Benefits Each anthology is composed of a wide spectrum of sources written by many of the foremost authorities in their respective fields. This unique approach provides students with a concise view of divergent opinions on each topic. Extensive book and periodical bibliographies and a list of organizations to contact are also included.