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 Power of Positive Thinking backing of religion to support his techniques. Krumm continues with a warning: "the predominant use of impersonal symbols for God is a serious and dangerous invitation to regard man as the center of reality and the Divine Reality as an impersonal power, the use and purpose of which is determined by the man who takes hold of it and employs it as he thinks best.” Edmund Fuller, book review editor of the "Episcopal Churchnews," warned against following Peale's teachings in an article titled “Pitchmen in the Pulpit” from March 1957. Fuller cautions readers not to believe Peale just because he