Gerald Mars 
Cheats at Work [PDF ebook] 
An Anthropology of Workplace Crime

Originally published in 1982 Cheats at Work looks at occupations from an anthropological point of view, using a similar format to analysis of cultures in the study of anthropology. The author uses an extensive set of quotations drawn from over a hundred informants at all social levels. The interviews reveal a distinct set of ideologies and attitudes from various occupations. The book looks specifically at cheating, lying and deception in various occupations, and the interviews reveal how and why people cheat, and deceive their customers and clients, how they learn the concealed tricks and professions and how they justify this.