Gregory E. Lang Books

Daddy's Little Girl: Stories of the Special Bond Between Fathers and Daughters

By Gregory E. Lang

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Mom's little angel

By Gregory E. Lang

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"The bond between a mother and a daughter is a constand in an everchanging world. Though the relationship evolves with each passing year--from caretaker to role model, teacher to best friend--the c...

Because you are my son

By Gregory E. Lang

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Because you are my son

By Gregory E. Lang

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Why a daughter needs a mom

By Gregory E. Lang

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Lead serve love

By Gregory E. Lang

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Why a Daughter Needs a Mom 100 Reasons

By Gregory E. Lang

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Why I Love You

By Gregory E. Lang

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Why I chose you

By Gregory E. Lang

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Why We Are a Family

By Gregory E. Lang

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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.