Patricia Posner Books

Tangled web

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After his beloved great-uncle has an angina attack, Jarrett tells his fiancee, Emily, that the elderly man's one wish is to live long enough to see him happily married. Emily agrees to bring their...

Romance in the air

By Patricia Posner

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After ending a relationship she discovered was based on lies, Annie Layton has sworn off men. When her employers, Edmunds' Airways, tell her they're expanding, she eagerly agrees to help set up the...

The Pharmacist of Auschwitz

By Julian Elfer, Patricia Posner

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The Pharmacist of Auschwitz

By Patricia Posner

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Prescription for happiness

By Patricia Posner

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From their very first meeting, sparks fly between Rose and Matthew. But they soon discover they have a lot in common - both are coping with loss, and both have a parentless child to love and care f...

Sunlight on shadows

By Patricia Posner

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The Pharmacist of Auschwitz

By Trisha Posner

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253 pages, 14 unnumbered pages of plates : 21 cm

De apotheker van Mengele

By Patricia Posner

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Farmaceutico de Auschwitz

By Patricia Posner

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Farmaceutico de Auschwitz

By Patricia Posner

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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.