Helen K. Black Books

Old Souls

By Helen Black, Robert Rubinstein

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Old Souls

By Helen Black, Robert Rubinstein

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Soul pain

By Helen K. Black

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"Soul Pain explores the multifaceted experience of suffering in old age. Older adults suffer for a variety of reasons, including illness, loss, life disappointment, and life experiences related to...

From zero to eighty

By Helen K. Black

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From zero to eighty

By Helen K. Black

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From zero to eighty

By Helen K. Black

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Hidden among the Hidden

By Charles E. Harmon, John T. Groce, Helen K. Black

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Soul Pain

By Helen K. Black

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Soul Pain

By Helen K. Black

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Soul Pain

By Helen K. Black

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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.