Spy the Lie: Former CIA Officers Teach You How to Detect Deception

Liespotting: Proven Techniques to Detect Deception

Persuade Anyone with NLP: Teach Yourself

Introduction to Conducting Private Investigations: Private Investigator Entry Level (02E) (2022 Edition)

THE HATE TRAP: The Anatomy of a Forgotten Assassination

How to Open & Operate a Financially Successful Private Investigation Business

Private Investigation and Security Science: A Scientific Approach

How to Undertake Surveillance & Reconnaissance: From a Civilian and Military Perspective

Seducing the Boys Club: Uncensored Tactics from a Woman at the Top

The Investigator’s Toolkit: Harnessing OSINT to Unmask Criminals

A MANUAL OF PRIVATE INVESTIGATION TECHNIQUES: Developing Sophisticated Investigative and Business Skills to Meet Modern Challenges

Essentials of Interrogation

Evidence in Traffic Crash Investigation and Reconstruction: Identification, Interpretation and Analysis of Evidence, and the Traffic Crash Investigation and Reconstruction Process

TRAFFIC CRASH INVESTIGATORS' MANUAL: A Levels 1 and 2 Reference, Training and Investigation Manual (3rd Ed.)

I, Spy: How to Be Your Own Private Investigator

Police Investigation - Powers, Tactics and Techniques (Vol 1 and 2 combined) 4th Edition 2022: Police Procedural and Police Administration

Gemini 2016: Your Personal Horoscope

Read People Like a Book: How to Analyze, Understand, and Predict People’s Emotions, Thoughts, Intentions, and Behaviors

How to Spot a Liar: Why People Don't Tell the Truth . . . and How You Can Catch Them