The book received media attention after its publication and The New York Times, Organization of American Historians 2000, Arthur Schlesinger Jr., and other former CCF participants focused attention on the book after its American release. Left-wing publications such as Monthly Review and The Nation gave the book a positive reception, while right-wing publications such as The American Spectator and National Interest gave the book a negative reception. The book won the Guardian First Book Award. Edward Said wrote that the book is "a major work of investigative history, an extremely valuable contribution to the all-important post-World War Two record" and that "the gist of her argument about Abstract Expressionism and its uses as propaganda is correct, if not wholly original". He added that some of the information in the book is not "complete" or "fully accurate", in particular the chapter discussing the CIA infiltrating organisations. The Baumols concluded that the book has a lot of detail which is not necessary for Saunders' arguments and repetition that "gives the reader a sense of wallowing through a dense landscape, looking for the fascinating nuggets of history that are certainly there." The Baumols argued that, based on the contents of the book, the CIA had a "surprisingly benign" impact, in contradiction with what they believed Saunders would conclude, and that the book "suggests that role in the arts was considerably less damaging than might reasonably have been feared." Paul Buhle of Brown University described Who Paid the Piper? as being the "most spectacular" book recently released about the involvement of CIA and intellectuals; Buhle stated that compared to Freiheit in der Offensive? by Michael Hochgeschwender, Who Paid the Piper? has fewer footnotes but more "charisma" and "verve". Gow wrote that even though the author had a negative attitude towards the CIA activities, the book has a "triumph" since "she shows men like to have been unsung heroes of the Cold War, as well as masters of art in both cultural warfare and cultural appreciation." Jeffrey C. Isaac criticized the book, saying that it was "shrill" and with a "prosecutorial tone," that it had arguments without "nuance," that it did not "grapple in a serious way with the ideas that were the chief currency of those it purports to study", and that it did not consider the importance and the need to secure "liberal values and institutions". Jeremy Isaacs in The Spectator wrote that the book has portions that are humorous, citing reactions to figures who learned that they were subsidised by the CIA. He concluded that it was a "hammer-blow of a book". Joffe criticised the book for equating the U.S. propaganda efforts with those from the USSR in a "a strident anti-anti-Communism that refuses to accord the Western cause the moral worth it deserves, considering the wares the totalitarians were hawking." He characterized the book as having "careless sourcing" and "ad hominem slurs". Roazen described the book as "highly readable" and "fascinating". Mary Carroll of Booklist described the book as having a "European point of view". William and Hilda Baumol, in their book review, wrote that Saunders "generally avoids explicit judgments, seeking to be dispassionate in her account." James Gow of King's College, London stated that Saunders had a negative tone towards the CIA activities and a "churlish attitude". Reviewing the book for Studies in Intelligence, former CIA official and historian Thomas M. Troy Jr. wrote "Saunders deserves praise for presenting opposing views" and that she did "a fine job in recounting the intriguing story of how the CIA worked with existing institutions", but added that the book "has some major shortcomings" and "contains some silly mistakes and some real gaffes". Troy stated that Saunders "repeatedly returns to the theme that the CIA injured the cause of intellectual freedom by clandestinely supporting champions of intellectual freedom." Touching on what he perceived to be the books shortcomings, he wrote "despite Saunders's assertions that the CIA undermined intellectual freedom, she does not present any examples of people whose intellectual growth was stunted or impaired because of the Agency's programs" and mentioned that she failed to substantial discuss Soviet actions during the Cold War that would have helped readers to understand those of the CIA. While taking issue with the book's content and conclusions, Troy summarized "I highly enjoyed and strongly recommend her book".