William F. Eng Books

The Day Trader's Manual: Theory, Art, and Science of Profitable Short-Term Investing

By William F. Eng

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Options

By William F. Eng

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"Now you can benefit from the money-making secrets of the best options traders in the world. Whether you're a new player or a seasoned pro, you will be able to profit immediately from the overlooke...

Futures

By William F. Eng

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Stocks

By William F. Eng

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Trading Rules II

By William F. Eng

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Trading rules

By William F. Eng

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The Technical Analysis of Stocks Options and Futures

By William F. Eng

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Trading Rules

By William F. Eng

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Trading rules

By William F. Eng

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Best of the Ticker

By William F. Eng

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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.