Dr. Ravetz demonstrates the role of choice and value-judgment, and the inevitability of error, in scientific research'.

[1] Important aspects of the book are the social construction of facts, science as a craft with essential tacit elements, the role of choice and value judgment, and the inevitability of error.

Moore (1973) summarizes the main claims of Ravetz's work are as follows: "First, historically the social character of science has undergone tremendous changes.

"[4] For Rothman (1974) Ravetz elucidates "the processes by which genuine and meaningful scientific knowledge accumulates.

His description of the emergence and refinement of scientific facts is articulated by the argument that science is craftman's work.