Louisa Bumagin Hellegers Books

Creating attractive patchwork pictures by the simple sewing together of pieces of fabric is a unique, innovative form of art akin to fine calligraphy or Renaissance tapestry- weaving. And you can d...

Pictures in patchwork

By Louisa Bumagin Hellegers

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Matchstick puzzles, tricks & games

By Louisa Bumagin Hellegers

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Includes geometry puzzles, word puzzles, brain twisters, magic tricks, and other fun uses for matchsticks.

Matchstick puzzles, tricks & games

By Louisa Bumagin Hellegers

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Includes geometry puzzles, word puzzles, brain twisters, magic tricks, and other fun uses for matchsticks.

Leather Tooling

By Connie Harold, Louisa Bunagin Hellegers, Charles G. Leland, Santa De Haven

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Giant Book of Crafts

By Anne E. Kallem, Louisa Bumagin Hellegers, Steven Morgenstern

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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.