Keffer, Lois Books

Lets Hear It For The Fruit Of The Spirit: 12 Instant Bible Lessons For Kids

By Lois Keffer, A01, Keffer, Lois, Becker, Mary Grace

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More 10-Minute Devotions For Youth Groups

By LOIS, Lois Keffer, Keffer, Keffer, Lois

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Cover subtitle: 52 quick new devotions to involve teenagers

All Together Now For Ages 4-12 (Volume 4 Summer)

By Lois Keffer, Group Publishing, Keffer, Lois, Group Children'S Ministry Resources

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All Together Now Sunday School is a best-selling Sunday school series by Lois Keffer. You’ll find All Together Now Sunday school lessons available in four volumes—one for each season of the year st...

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.