Kathy Wierenga Books

Double Exposure Brio Girls Library

By Kathy Wierenga

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Double exposure

By Kathy Wierenga, Kathy Wiergenga

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In public school after eleven years of home schooling, sixteen-year-old Hannah struggles to reconcile her religious convictions about courtship with her growing attraction to a boy.

Croutons for breakfast

By Kathy Wierenga

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Hannah and Jacie both undergo personal transformations as God reveals Himself to them in new ways on a Brio missions trip to Venezuela.

Croutons for Breakfast Brio Girls Library

By Kathy Wierenga, Lissa Halls Johnson, Jane Vogel

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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.