Macarena Salas Books

Bing yuan shang de jian chi hu

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The magic tree house transports Jack and Annie on a mission to the Ice Age where they encounter Cro-Magnons, cave bears, sabertooth tigers, and woolly mammoths.

Yue qiu zhi lu

By Mary Pope Osborne

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The magic treehouse takes Jack and Annie to a moon base in the future where they continue to search for the fourth thing they need to free their friend Morgan from the magician's spell.

You ling zhen de niu zai

By Mary Pope Osborne

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Their magic tree house takes Jack and Annie back to the Wild West, where they experience excitement and danger and try to solve a riddle.

Ai shang bei ji xiong

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Their magic tree house takes Jack and Annie to the Arctic, where a polar bear leads them onto very thin ice.

Aracnido el Rey de las aranas

By Adam Blade, Macarena Salas

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Trillon el Leon de tres cabezas

By Adam Blade, Macarena Salas

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Spiros la Fenix fantasma

By Adam Blade, Macarena Salas

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Torgor el Minotauro

By Adam Blade, Macarena Salas

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Murk. El hombre del pantano

By Adam Blade, Macarena Salas

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Terra. La maldicion del bosque

By Adam Blade, Macarena Salas

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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.