Ronnie Cummins Books

Covid 19 Die ganze Wahrheit

By Ronnie Cummins, Joseph Mercola

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Costa Rica Filmstrip Audio Cassette Teachers Guide

By Ronnie Cummins

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El Salvador

By Ronnie Cummins

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Cuba is my home

By Gini Holland

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A look at the life of a twelve-year-old boy and his family living in Havana, Cuba. Includes a section with information on Cuba.

El Salvador is my home

By Eileen Foran

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A look at the life of a twelve-year-old boy and his family who had to move from their farm to a poor section of San Salvador. Includes a section with information on El Salvador.

Nicaragua is my home

By Jamie Daniel

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A look at the life of a ten-year-old boy and his family living in a suburb of Leon, Nicaragua's second largest city. Includes a section with information on Nicaragua.

Guatemala is my home

By Patricia Lantier Sampon

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A look at the life of a twelve-year-old Mayan Indian girl and her family living in the lakeside village of Santiago Atitlán. Includes a section with information on Guatemala.

El Salvador Children of the World

By Ronnie Cummins

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Guatemala Children of the World Set One

By Rose Welch, Ronnie Cummins

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Nicaragua Children of the World Set One

By Ronnie Cummins

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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.