The Public Broadcasting Service series Vietnam: A Television History is generally sound, and commendably willing to present opinions and judgments on controversial issues.
Stanley Karnow's Vietnam: A History presents important new information but gives inadequate attention to some fundamental issues; James Harrison's The Endless War contains less original material but deals better with fundamental issues, including the nature and sources of Communist strength in Vietnam.
R. B. Smith, Revolution versus Containment, 1955–1961, volume 1 of An International History of the Vietnam War, tries to cover too much in a short book. Some of the conclusions are not adequately proven.
Ronald Spector's Advice and Support: The Early Years, 1941–1960 (the first volume of the United States Army's official history of the Vietnam War) is useful, especially for the periods 1944–1945 and 1956–1960. It slightly exaggerates the speed with which Communist guerrilla warfare developed in South Vietnam between 1957 and 1960.