Paul Frediani Books

Golf Flex

By Paul Frediani

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The Official Five Star Fitness Boot Camp Workout

By Paul Frediani, Andrew Flach

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Ski Flex

By Paul Frediani, Harald Harb

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Net Flex

By Paul Frediani

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Improve your tennis game, increase your power, speed and agility while avoiding injuries in just 10 minutes each day!Tennis anyone? It will be tennis everyone with Net Flex, a new scientifically de...

Sex Flex

By Deborah David, Paul Frediani, Paul Acsm Frediani, Deborah Phd David

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PowerSculpt

By Paul Frediani

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Golf Flex

By Paul Frediani

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Improve your golf game, increase your power, and avoid injuries in just 10 minutes each day! Thousands of golfers at all levels and ages improved their game with the original Golf Flex. Now, to t...

Surf Flex

By Paul Frediani

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Powersculpt For Men

By Paul Frediani Peter Field Peck

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Join the PowerSculpt revolution! Build muscle, strength and stamina. The revolutionary fitness ball program: designed now just for men.It's a fact. The fitness ball is one of the most effective way...

PowerSculpt For Women

By Paul Frediani

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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.