Peter De Jonge Books

When a young student mysteriously disappears from a New York bar, Detective Darlene O'Hara takes on the case - and unravels a dark story of murder and deception.

Shadows still remain

By Peter De Jonge

Average: 0.00, 0 Ratings

Shadows Still Remain: A Novel

By Peter De Jonge

Average: 0.00, 0 Ratings

Francesca Pena is an unlikely success story. Running from a troubled past, she's come to New York to reinvent herself, earning a scholarship to NYU. Her natural beauty and effervescent presence mak...

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.