Alfredo Narvaez Books

The Pyramids of Tucume: The Quest for Peru's Forgotten City

By Thor Heyerdahl, Daniel H. Sandweiss, Etc., Alfredo Narvaez

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"Well-illustrated synthesis of multi-year excavations at a city of the Lambayeque culture extending over 220 hectares with 26 major pyramids, and founded ca. AD 1100"--Handbook of Latin American St...

Huaca las Balsas de Tucume

By Alfredo Narvaez, Bernarda Delgado

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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.