Alexandra Wallner Books

A young boy is excited when he hears that a hurricane is coming to his oceanfront home in San Juan, Puerto Rico, but when it comes, he learns how dangerous hurricanes can be.

Ghoulish giggles & monster riddles

By Alexandra Wallner

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Includes more than ninety riddles featuring ghosts, vampires, witches, mummies, and other terrible creatures.

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.