Helena Coggan Books

The Reaction

Average: 0.00, 0 Ratings

In the explosive follow-up to The Catalyst, Rose Elmsworth faces a looming war as the world crumbles around her and shocking secrets come to light.Fifteen-year-old Rose Elmsworth is alone. Her fath...

The Orphanage of Gods

Average: 0.00, 0 Ratings

The Catalyst

By Helena Coggan, Elizabeth Knowelden

Average: 0.00, 0 Ratings

The Catalyst

By Helena Coggan, Elizabeth Knowelden

Average: 0.00, 0 Ratings

The Catalyst

By Helena Coggan, Elizabeth Knowelden

Average: 0.00, 0 Ratings

The Catalyst

By Helena Coggan

Average: 0.00, 0 Ratings

In a thrilling debut by sixteen-year-old Helena Coggan, a girl with a terrible secret is tested to her limits as her fractured world teeters on the brink of war.Eighteen years ago, a dimensional br...

Catalyst

By Helena Coggan

Average: 0.00, 0 Ratings

Catalyst

By Helena Coggan

Average: 0.00, 0 Ratings

Reaction

By Helena Coggan

Average: 0.00, 0 Ratings

Reaction

By Helena Coggan

Average: 0.00, 0 Ratings

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.