John William Polidori Books

The Vampyre and Ernestus Berchtold

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In 1816, John William Polidori travelled to Geneva as Lord Byron’s personal physician. There they met Mary Godwin (later Shelley) and her lover Percy Shelley and decided to while away a wet summer...

Polidori s Vampyre

By John William Polidori

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Polidori s Vampyre

By John William Polidori

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Collected Vampire Stories Volume I

By John William Polidori, Lord Byron, Theophile Gautier

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The Vampyre

By John William Polidori

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John William Polidori Ximenes Other Poems

By John William Polidori

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The Vampyre a Tale

By John William Polidori

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The Vampyre 1819 Revolution and Romanticism 1789 1834

By John William Polidori

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The vampyre

By John William Polidori

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The vampyre

By John William Polidori

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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.