Chaim Dalfin Books

LubavitchSpeak A Dictionary of Chabad Lubavitch Chasidism

By Chaim Dalfin

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The seven Chabad-Lubavitch rebbes

By Chaim Dalfin

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Demystifying the mystical

By Chaim Dalfin

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Demystifying the Mystical is a primer designed to ease the layperson into the esoteric world of Chasidism. The concepts found in Jewish mysticism can often be difficult even for the learned person...

Conversations with the Rebbe, Menachem Mendel Schneerson

By Chaim Dalfin

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Davening

By Elchonon Kranz, Chaim Dalfin

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Davening Rosh HaShana Prayers

By Rabbi Chaim Dalfin

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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.