How to Open & Operate a Financially Successful Private Investigation Business (How to Open & Operate a ...)

The Complete Idiot's Guide to Private Investigating, Third Edition (Idiot's Guides)

51 Dirty Tricks Bad Guys Really Hate: Sneaky Tactics used by Police, Private Investigators and Bounty Hunters

Introduction to Conducting Private Investigations: Private Investigator Entry Level (02E) (2nd Edition)

The Investigator's Little Black Book 3

Private Investigation 101

Skip Trace Secrets: Dirty little tricks skip tracers use...: Learn Skip Tracing

How to Find Out Anything: From Extreme Google Searches to Scouring Government Documents, a Guide to Uncovering Anything About Everyone and Everything

The Everything Private Investigation Book: Master the techniques of the pros to examine evidence, trace down people, and discover the truth (Everything®)