Elisabeth Wolf Books

Die Prufung und Zulassung von Pflanzenschutzmitteln

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Lulu in LA LA Land

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Down-to-earth Lulu does not fit with her glamorous, Hollywood A-list family but as her eleventh birthday approaches she writes a screenplay about her efforts to throw a birthday party her parents a...

Lulu in Honolulu

By Elisabeth Wolf

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Lulu's family, in Hawaii while her parents work on a film, is too busy to enjoy the location or each other's company so eleven-year-old Lulu decides to organize a family Fourth of July party.

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.