Connie Roop Books

In simple rhyming text and beautiful illustrations, the authors explore the world of the octopus: where he lives, what he eats, and what he does to survive.

Escape from the Ice

By Peter Roop, Connie Roop

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Un pulpo en el mar

By Peter Roop, Connie Roop

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Children learn many things about the octopus, such as where they live, what they eat, and what they do to survive.

In Their Own Words: Betsy Ross

By Peter Roop, Connie Roop

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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.