Lauren Castillo Books

La abuela en la ciudad

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A young boy is frightened by how busy and noisy the city is when he goes there to visit his Nana, but she makes him a fancy red cape that keeps him from being scared as she shows him how wonderful...

L avia i la ciutat

By Lauren Castillo

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It Is Not Time for Sleeping padded Board Book

By Lisa Graff, Lauren Castillo

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The Ramble Shamble Children

By Lauren Castillo, Christina Soontornvat

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New picture book by a two-time Newbery Honor-winning author! The delightful story of an unconventional family of kids who learn the ups and downs of working together.Merra, Locky, Roozle, Finn, and...

Nana in the Country

By Lauren Castillo

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Nana in the City

By Lauren Castillo

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It Is Not Time for Sleeping

By Lisa Graff, Lauren Castillo

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Troublemaker

By Lauren Castillo

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Buffalo Music

By Tracey Fern, Lauren Castillo

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Our Friend Hedgehog 6 Copy Pre Pack with Easel Fall 2022

By Lauren Castillo

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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.