Prince of the City

Daley's account of NYPD detective Bob Leuci's undercover work against police corruption is fundamentally a study in what happens when an informant becomes a system—when one person's decision to cooperate with institutional investigators generates cascading, uncontrollable consequences across an entire network of relationships.

For product directors, this is a case study in the gap between intended scope and actual impact: Leuci began believing he could expose only drug dealers, and ended destroying colleagues, friends, and himself through logic he could not reverse once set in motion.

The book forces serious thinking about how institutional loyalty, small compromises, and systemic incentives compound over time in ways that individual actors catastrophically underestimate.

Daley renders the bureaucratic machinery of the Special Investigations Unit with enough granularity to show how organisations develop cultures that normalize deviation until deviation becomes the operating model—a dynamic directly relevant to technical debt, dark patterns, and product cultures that drift.

The moral weight of the narrative resists the comfortable abstraction that leaders of digital systems sometimes use to avoid accountability for second-order effects of their decisions.