The Power of Positive Thinking believe and live successfully.” Peale's work came under criticism from various mental health experts, theologians, and academics. One general criticism against Peale's book was the lack of verified sources. "The Power of Positive Thinking" includes many personal anecdotes that the reader has no way of validating. The book includes stories about “a business executive”, “a man, an alcoholic”, “a famous trapeze artist”, “a friend of [Peale’s], a midwestern businessman”, and other unnamed individuals which cannot be verified from the information Peale presents with each anecdote. R. C. Murphy, a prominent psychiatrist based out of Tacoma, Washington, addresses another criticism of
The Art of Negative Thinking is the worst off with the most serious problems, and who is malingerering or does not belong. After dramatic emotional breakdowns, the group members discover solidarity and emotional release by being honest and dropping the facade they have built around themselves. They become familiar with each other, they become friends, and they learn the art of thinking negatively. "The Art of Negative Thinking" was released in Norway on 11 November 2006 and its international run began in June 2007. It was distributed in Norway by Columbia Tristar Nordisk Film Distributors, and internationally by the Danish company TrustNordisk. The film sold