Helen Townsend Books

Australia

By Helen Townsend

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William Withering and the Foxglove

By Helen Townsend, Josephine Townsend, R.D. Mann

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Adult children their elderly parents

By Helen Townsend

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Above the Starry Frame

By Helen Townsend

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Hawaii

By Gerald Carr, Helen Townsend

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Packed with culture and activities for travelers to enjoy including beautiful beaches, volcanoes, and insider tips for everywhere from Honolulu to Waikiki. Try local delicacies with our guide to gr...

Hawaii

By Gerald Carr, Helen Townsend

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Packed with culture and activities for travelers to enjoy, our DK Eyewitness Travel Guide to Hawaii includes the best attractions and unforgettable sites including beautiful beaches, volcanoes, and...

Alles begann am Meer.

By Helen Townsend

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Traume fur ein Leben.

By Helen Townsend

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Alles begann am Meer.

By Helen Townsend

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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.