Russ Hudson Books

The Silent Intruder
The Silent Intruder

By Charles Panati, Michael Hudson

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xi, 208 pages ; 22 cm

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Personality Types: Using the Enneagram for Self-Discovery
The Wisdom of the Enneagram
The Wisdom of the Enneagram

By Don Richard Riso

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The first definitive guide to using the wisdom of the Enneagram for spiritual and psychological growthThe ancient symbol of the Enneagram has become one of today's most popular systems for self-und...

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Discovering Your Personality Type: The Essential Introduction to the Enneagram, Revised and Expanded
The Riso Hudson Enneagram Type Indicator RHETI Version 2.5
The Reformer
The Reformer

By Don Richard Riso, Russ Hudson

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The Helper
The Helper

By Don Richard Riso, Russ Hudson

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The Investigator
The Enthusiast
The Enthusiast

By Don Richard Riso, Russ Hudson

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The Challenger
The Challenger

By Don Richard Riso, Russ Hudson

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If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

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