Jennifer Lanthier Books

Legend of the Lost Jewels

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When their father plans a treasure hunt to keep boredom and trouble at bay during a storm, the adventure turns dangerous as Hazel and Ned face two mysteries.

The mystery of the Martello tower

By Jennifer Lanthier

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In their attempts to solve the mystery of their father's disappearance, Hazel and her brother, Ned, find themselves involved with a trio of art thieves and uncover some disturbing family secrets.

The Mystery of the Martello Tower

By Jennifer Lanthier

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The stamp collector

By Jennifer Lanthier

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A city boy finds a stamp that unlocks his imagination; a country boy is captivated by stories. When they grow up, the two boys take different paths - one becomes a prison guard, the other works in...

The stamp collector

By Jennifer Lanthier

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A city boy finds a stamp that unlocks his imagination; a country boy is captivated by stories. When they grow up, the two boys take different paths - one becomes a prison guard, the other works in...

Mystery of the Martello Tower

By Jennifer Lanthier

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By the Time You Read This...

By Jennifer Lanthier, Patricia Storms

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The Mystery of the Martello Tower

By Jennifer Lanthier

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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.