Mary Langer Books

Moon for a Candle

By Mary Langer, Maryn Langer

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Christmas On The Prairie: Take Me Home/One Wintry Night/The Christmas Necklace/Colder Than Ice

By Maryn Langer, Tracey V. Bateman, Mary Langer, Pamela Griffin, Tracey Bateman, Jill Stengl, Tracey Victoria Bateman

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Christmas on the vast American plains holds little appeal for four women struggling to find a warm place to belong. Estelle is paralzed by grief over a fallen soldier and balks at holiday preparati...

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.