Patricia Sierra Books

A boy I never knew

By Patricia Sierra

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Echoes in the Grove

By Patricia Sierra

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The Prettiest Feathers

By John Philpin, Patricia Sierra

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Tunnel of Night

By John Philpin, Patricia Sierra

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The Prettiest Feathers

By John Philpin, Patricia Sierra

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Sarah Sinclair was the perfect victim--she wanted to die.When a darkly enigmatic man approaches her in the small antiquarian book store where she works, Sarah is drawn into a slow dance toward deat...

The Prettiest Feathers

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Tunnel of Night

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A sequel to "The Prettiest Feathers", this novel continues the story of forensic scientist Dr. Lucas Frank and his NYPD detective daughter, Lane. The serial killer they thought was dead is back, an...

One Way Romance

By Patricia Sierra

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Tunnel of Night

By John Philpin, Patricia Sierra

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Wolfsjagd.

By John Philpin, Patricia Sierra

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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.