Bob Costello Books

The restorative practices handbook

By Bob Costello

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Restorative circles in schools

By Costello Bob Consultant

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"Restorative circles in schools is an in-depth guidebook on the use of the circle, an essential restorative practice for schools. the book includes a wealth of practical knowledge on circles, drawn...

Circulos restaurativos nas escolas

By Costello Bob Consultant

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Restorative Circles in Schools

By Joshua Wachtel, Bob Costello, Ted Wachtel

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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.