Laurence Heller Ph.D. Books

Healing Developmental Trauma

By Laurence Heller Ph.D., Aline LaPierre Psy.D.

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This “well-organized, valuable” guide draws from somatic-based psychotherapy and neuroscience to offer “clear guidance” for coping with childhood trauma (Peter Levine, autho...

The Practical Guide for Healing Developmental Trauma

By Laurence Heller, Brad Kammer

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A practical step-by-step guide and follow-up companion to Healing Developmental Trauma--presenting one of the first comprehensive models for addressing complex post-traumatic stress disorder (...

How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

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.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.