Douglas Ward Books

A guide to ocean cruising, with descriptions of cruise ships and comparisons based on cabin facilties, service, destinations, and food, with special advice for singles, families, seniors, and the p...

River cruising in Europe

By Douglas Ward

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A river cruise is undoubtedly the most civilized way to see the best of Europe. You can relax in the comfort of a small vessel as you glide through beautiful towns and spectacular scenery. This boo...

Berlitz Cruising Cruise Ships 2016

By Douglas Ward

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River cruising in Europe

By Douglas Ward

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"This book will tell you everything you need to known when choosing a cruise on one of Europe's major waterways. Douglas Ward, renowned expert on all things cruise, tells you what to expect, the p...

Cruising cruise ships 2017

By Douglas Ward

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"All reviews are completely independent ... [includes]: reviews of 275 cruise ships; tips on getting the best value for money; details that the brochures don't include; internationally recognized...

River cruising in Europe the USA

By Douglas Ward

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A river cruise is undoubtedly the most civilized way to see the best of a region; you can relax in the comfort of a small vessel as you glide through beautiful towns and spectacular scenery. But ho...

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.