Four Types

Lean Enterprise Institute Inc.

Four Types of Problems (English Edition)        

Macmillan USA

Surrounded by Idiots Revised & Expanded Edition: The Four Types of Human Behavior and How to Effectively Communicate with Each in Business (and in Life)

Kailash

Die 4 Happiness-Typen: Wie Erwartungen unsere Glücksfähigkeit prägen

CreateSpace Independent Publishing Platform

The Four People Types: And what drives them      

St. Martin's Essentials

Surrounded by Idiots: The Four Types of Human Behavior and How to Effectively Communicate with Each in Business (and in Life) (The Surrounded by Idiots Series)

CREATESPACE

The Four Types of Dogs Every Business Needs: How To Build the Right Team To Grow Your Business and Have A Balanced Life

The Four Types of Narcissism: Understanding the Narcissistic Personality Disorder and Introducing Revolutionary Ways for Extraordinary Emotional Abuse Recovery (English Edition)

Grand Type Classics

Large Print - The Big Four - Grand Type Collector's Edition - Matte Hardcover with Dust Jacket

The Four Types of Human Behavior: How to Master Communication with Difficult People (English Edition)

Independently published

Parenting as a Type Four: Tools for Parenting with Clarity, Compassion, and Confidence (The Aligned Parent)