Ellen Potter Books

The Kneebone Boy

By Ellen Potter

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Olivia Kidney Stops for No One

By Ellen Potter

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What is it with Olivia and ghosts? No matter where Olivia Kidney goes, they follow. even when she and her klutzy handyman father start over in a new brownstone in New York City—owned by the mad, ba...

Olivia Kidney Stops for No One

By Nicola Slater, Ellen Potter

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Olivia Kidney Stops for No One

By Ellen Potter

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Olivia Kidney Hot on the Trail

By Ellen Potter

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Pish Posh

By Ellen Potter

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Olivia Kidney Hot on the Trail

By Ellen Potter

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Pish Posh

By Ellen Potter

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Olivia Kidney

By Ellen Potter

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Twelve-year-old Olivia explores her new apartment building and finds a psychic, talking lizards, a shrunken ex-pirate, an exiled princess, ghosts, and other unusual characters.

Pish Posh

By Ellen Potter

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Eleven-year-old Clara Frankofile sits in her parents' elegant New York City restaurant, Pish Posh, and passes judgement on each customer as a Somebody or a Nobody, but her all-seeing eyes fail to o...

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.