Rachel Ruiz Books

When Penny met POTUS

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Penny knows that her mother works for somebody called the POTUS, but she does not know what that means, and the odd name seems to her to imply some kind of friendly monster.

Leaders Doing Headstands

By Rachel Ruiz, Mark Weakland

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When Penny met POTUS

By Rachel Ruiz

Average: 0.00, 0 Ratings

Penny knows that her mother works for somebody called the POTUS, but she does not know what that means, and the odd name seems to her to imply some kind of friendly monster.

Martin Luther King Jr

By Rachel Ruiz, Fiona W. Dunn, Sarah Skeate

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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.