William Smith Books

The coaching you need to build strength, maximum muscle growth and power.Experts agree the fastest and most effective way to build strength and increase muscle mass is to lift weights. Written by t...

Exercises for Parkinson's Disease

By William Smith

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Exercises for Parkinson’s Disease is the complete guide to achieving better health, providing everything from tips on how to structure your day to take full advantage of higher energy periods...

Exercises for Sciatica

By William Smith, Wazim Buksh MD

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The complete program for stronger muscles, relief from pain and renewed energy. Defined as back or leg pain caused by irritation to the sciatic nerve, sciatica is a debilitating and painful condit...

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.