Peter Eldin Books

Amazing mysteries and phenomena.

By Peter Eldin

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The most excellent book of how to be a magician

By Peter Eldin

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Provides instructions for a variety of tricks, from walking through a brick wall to linking paper clips in space, and advice on making the necessary costume and props and presenting your act to an...

The most excellent book of how to do card tricks

By Peter Eldin

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Presents instructions for performing an array of card tricks, with practical advice on shuffling, manner of display, and other card-handling tips.

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.