Laurence Santrey Books

Magnets

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Discusses the qualities of magnets, which attract certain metals and have been used as compasses and as components of many modern inventions, including the telephone, television, and electric motor.

Magnets Let s Explore Our World

By Laurence Santrey

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Helen Keller

By Hal Frenck, Laurence Santrey

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A biography of the blind and deaf woman who overcame her handicaps with the help of her teacher, Anne Sullivan.

Birds

By Laurence Santrey

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Thomas Jefferson

By Laurence Santrey

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A biography of the versatile American known for his accomplishments as inventor, architect, musician, diplomat, scientific farmer, political philosopher, author of the Declaration of Independence,...

Thomas Jefferson

By Laurence Santrey

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A biography of the versatile American known for his accomplishments as inventor, architect, musician, diplomat, scientific farmer, political philosopher, author of the Declaration of Independence,...

Birds

By Laurence Santrey

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Birds Creatures That Walk Swim Or Fly

By Laurence Santrey

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Lakes and ponds

By Laurence Santrey

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Describes the characteristics of lakes and ponds, water-filled basins surrounded by land, and explains how they are formed and how they can be destroyed by pollution or human interference.

Lakes and ponds

By Laurence Santrey

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Describes the characteristics of lakes and ponds, water-filled basins surrounded by land, and explains how they are formed and how they can be destroyed by pollution or human interference.

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.