Best Investigations books

OSINT Techniques

Resources for Uncovering Online Information

Michael Bazzell's relentlessly updated technical manual for finding people, accounts, breach data, geolocation evidence, and online identifiers — the de facto reference of the modern OSINT field.

Tracers in the Dark

The Global Hunt for the Crime Lords of Cryptocurrency

Andy Greenberg's investigative narrative of how Bitcoin's allegedly-anonymous public ledger became, in the hands of researchers and federal investigators, the most powerful OSINT tool of the last decade.

Open Source Intelligence Techniques and Tools

Hassan and Hijazi's pedagogical introduction to OSINT framed inside the broader intelligence cycle (collection → processing → analysis → dissemination) rather than around a specific toolchain.