Unrestricted Warfare
Etymology: Taylor Fravel pointed out a common distortion in translation of the subtitle of the book. While it was translated and understood in the West by many as "China’s Master Plan to Destroy America", the actual subtitle was "Two Air Force Senior Colonels on Scenarios for War and the Operational Art in an Era of Globalization".

Source of text: The English translation of the book was first made available by the Foreign Broadcast Information Service in 1999. The book was then published in English by a previously unknown Panamanian publisher, with the subtitle "China's Master Plan to Destroy America" and a picture of the burning World Trade Center on the cover. A French translation was published in 2003.
The text has been cited by the US government, e.g. on a military website by James Perry who states:

In February 1999, the PLA Literature and Arts Publishing House issued Unrestricted Warfare, a book written by two PLA air force political officers, Senior Col Qiao Liang and Senior Col Wang Xiangsui. The venue for publication and the laudatory reviews of the book in official publications suggested that Unrestricted Warfare enjoyed the support of some elements of the PLA leadership. The Western press quoted various sensational passages from the book and described it in terms that verged on hyperbole. The book was not a blueprint for a “dirty war” against the West but a call for innovative thinking on future warfare.

Weaknesses of the United States: The book argues that the primary weakness of the United States in military matters is that the US views revolution in military thought solely in terms of technology. The book further argues that to the US, military doctrine evolves because new technology allows new capabilities. As such, the book argues that the United States does not consider the wider picture of military strategy, which includes legal, economic, information, technological and biological factors, making the case that the United States is vulnerable to attack along asymmetric lines.
Certain passages of the book have aroused controversy, specifically sections suggesting terrorism as a form of asymmetric warfare in order to weaken technologically superior enemies such as the United States. Additionally, analysts have also praised the book for seemingly prescient predictions of 9/11, 3 years before the date of actual events taking place:

Alternative methods of attack: Reducing one's opponent, the book notes, can be accomplished in a number of ways other than direct military confrontation. The book notes that these alternative methods "have the same and even greater destructive force than military warfare, and they have already produced serious threats different from the past and in many directions for...national security."

List of methods of attack: psychological warfare
smuggling warfare
media warfare
drug warfare
network warfare
technological warfare
fabrication warfare
resources warfare
economic aid warfare
cultural warfare
international law warfare

Defense against unrestricted warfare: The authors note that an old-fashioned mentality that considers military action the only offensive action is inadequate given the new range of threats. Instead, the authors advocate forming a "composite force in all aspects related to national interest. Moreover, given this type of composite force, it is also necessary to have this type of composite force to become the means which can be utilized for actual operations. This should be a "grand warfare method" that combines all of the dimensions and methods in the two major areas of military and non-military affairs so as to carry out warfare. This is the opposite of the formula for warfare methods brought forth in past wars."

Impact and reception: Originally published as a work of military theory, the book has recently garnered renewed interest amongst the backdrop of deteriorating US-China relations and the trade war initiated by the Trump Administration. The book is the subject of extensive study by both current and former members of the US military establishment with numerous papers and articles published on the subject by the National Defense University, Army University Press and the School of Advanced Warfighting. The book is also the source of inspiration for many separate books such as Stealth War and War Without Rules by US Air Force Brigadier General Robert Spalding.
Contents of the book has also been cited as the source of inspiration for hardline US policies towards the People's Republic of China by former chief strategist to the president of the United States Steve Bannon.

See also: Assassin's Mace
Chinese information operations and information warfare
United Front Work Department
Thirty-Six Stratagems

References: 

External links: 
Full text of Unrestricted Warfare
Full PDF of Unrestricted Warfare