The 16 Personality Types: Descriptions for Self-Discovery
by Linda V. Berens and Dario Nardi

Quick Guide to the 16 Personality Types in Organizations: Understanding Personality Differences in the Workplace
Contributors: (in alphabetical order) Linda V. Berens, Sue A. Cooper, Linda K. Ernst, Charles R. Martin, Steve Myers, Dario Nardi, Roger R. Pearman, Marci Segal, Melissa A. Smith

Quick Guide to the 16 Personality Types and Career Mastery: Living with Purpose and Working Effectively
By Charles R. Martin

Quick Guide to the 16 Personality Types and Teams: Applying Team Essentials™ to Create Effective Teams
By Linda V. Berens, Linda K. Ernst, and Melissa A. Smith

Understanding Yourself and Others®:
An Introduction to Personality Type
by Linda V. Berens and Dario Nardi