Karl Fulves Books

Real estate principles

By Bruce M. Harwood

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Self-Working Card Tricks

By Karl Fulves

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A guide to card tricks which work automatically because of the mathematical relationships within the card deck.

Self-Working Number Magic: 101 Foolproof Tricks

By Karl Fulves

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More Self-Working Card Tricks: 88 Foolproof Card Miracles For The Amateur Magician

By Karl Fulves, With 94 Illustrations By Joseph K. Schmidt

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Impromptu card tricks, telephone tricks, shuffle setups, telepathy with cards, gambling secrets, tricks with torn and folded cards, card-forcing secrets, card tricks with props, vanishing cards, tr...

Fulves s Complete Self Working Card Tricks

By Karl Fulves

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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.