The conversation in the lobby, which occurred sometime in the early-to-mid 1960s, sparked both men's imaginations and ultimately gave birth to their 1969 best-seller The Peter Principle ...

It was in the mid-1960s that Laurence J. Peter, a young teacher in Canada, wondered why one encounters so many incompetent employees over the course of a career ...

sparked both men's imaginations and ultimately gave birth to their 1969 best-seller The Peter Principle: Why Things Always Go Wrong. It sold millions of copies, and the term "Peter Principle" has ...