Dr. David Delvin Books

The Good Sex Guide : The Illustrated Guide To Enhance Your Lovemaking

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This guide to sex treats the subject in a frank and entertaining way, helping readers to improve the quality of their lovemaking by enhancing sexual pleasure as well as overcoming the common proble...

It'S A Doc'S Life

By Dr. David Delvin, David Delvin

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The Pocket Good Sex Guide: Your Short Cut To Sexual Ecstasy

By Dr. David Delvin, David Delvin

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Whether you are a man or a woman, single or committed, whatever your age, there will always be things you didn't know about sex and ways to improve your lovemaking. The Pocket Good Sex Guide provid...

A-Z Of Allergies

By Dr. David Delvin, David Delvin

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96 pages ; 20 cm At bottom of t.p.: Royal Society of Medicine

Sex Play: Foreplay Techniques For A Happy And Fulfilled Sex Life

By Dr. David Delvin, David Delvin

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Coping With A Hernia

By Dr. David Delvin, David Delvin

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Backache: What You Need To Know

By Dr. David Delvin, David Delvin

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Back pain is the largest single cause of sickness absence in the UK, and eighty percent of Britons will suffer from it at some point in their lives. This book looks at the options for back pain, fr...

How To Beat Worry And Stress

By Dr. David Delvin, Delvin, Dr. David

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A Certain Amount Of Worry And Stress Can Be Energising. They May Act As A Natural Warning System When Something Is Wrong, And Can Help People Meet Deadlines And Complete Tasks. High Levels Of Both...

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.