Peggy Nicholson Books

Hally Watkins, her younger brother Jason, and other young people they meet in Newport, Rhode Island, must prove that their friend Tuyet is not responsible for burning down the house she has been hi...

The case of the lighthouse ghost

By J. F. Warner

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The group of young people in Newport, Rhode Island, who call themselves the Casecrackers, try to discover the identity of a ghost seen on nearby Hazard Island.

The case of the squeaky thief

By Peggy Nicholson

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The Kerry Hill Casecrackers, a group of kids spending the summer in Newport, help catch the thief of valuable antiques from Maitland Manor Historic Museum.

Better breathing

By Peggy Nicholson

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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.