Sergio Martinez Books

From Slavery to Freedom With Harriet Tubman My American Journey

By Deborah Hedstrom Page

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From Telegraph to Light Bulb with Thomas Edison My American Journey

By Deborah Hedstrom Page

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Cabeza de Vaca

By Brandt Keith

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Describes the life of the sixteenth-century Spanish explorer who traveled from Florida to Mexico and sought justice and fair treatment for the Native Americans.

The Prayer of Jabez for Young Hearts

By Bruce H. Wilkinson, Rob Suggs

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Chronicles of exile

By Sergio Martinez

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Punchinello and the Most Marvelous Gift

By Sergio Martinez, Max Lucado

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Actualistic Taphonomy in South America

By Fernanda Cabrera, Alejandra Rojas, Sergio Martinez

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Geology and Paleontology of the Quaternary of Uruguay

By Martin Ubilla, Sergio Martinez

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Las paginas del mar

By Sergio Martinez Martinez

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In the spring of 1519, a young man and his 15-year-old brother arrive in Seville. Behind them they leave months of wandering around Spain, getting farther and farther from their homeland in the nor...

Biogeography of the Quaternary molluscs of the southwestern Atlantic Ocean

By Sergio Martinez

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The Quaternary comprises a brief time in the Earth’s history, and apart from a few exceptions, molluscan assemblages recovered from exposures along the coast of Southwestern South America (Southern...

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.