Margaret Poynter Books

Discusses the formation of volcanoes, the eruption of such famous ones as Paricutin and Krakatoa, the ring of fire, the usefulness of volcanoes, and volcanic areas of the United States.

The racquetball book

By Margaret Poynter

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Introduces the game of racquetball, its equipment, clothing, rules, techniques, and some of its champion players.

Gold rush!

By Margaret Poynter

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Recounts the Klondike gold rush of 1896-8 and both the greed and heroism of the people inflamed with gold fever.

Search & rescue

By Margaret Poynter

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Describes the work done by teams in southern California conducting search and rescue operations in the mountains.

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.