Frederick S. Perls Books

Abordagem Gestaltica e Testemunha Ocular da Terapia A

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Grundbog i gestaltterapi

By Frederick S. Perls

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Gestaltterapi ord for Ord

By Frederick S. Perls

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El presente libro, cuya primera edición data de 1947, coincide con la iniciación de una ya famosa escuela psicológica y terapéutica que será conocida desde entonces como "terapia gestáltica", y que...

Gestalt therapy Excitement and Growth in the Human Personality

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Gestalt Therapy Verbatim

By Frederick S. Perls

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Gestalt Therapy

By Frederick S. Perls, Fredrick Perls

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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.