Millicent E. Selsam Books

First Look at Fish

By Joyce Hunt, Millicent E. Selsam

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Sea Monsters of Long Ago

By John Hamberger, Millicent E. Selsam

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Night Animals

By Millicent E. Selsam

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Toda clase de bebes

By Millicent E. Selsam

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Some babies don't look like their parents when they are born, but most do. Some are so small it seems incredible they will grow as large as their mother and father.

A First Look at Sharks

By Millicent E. Selsam

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Where do they go

By Millicent E. Selsam

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Explains how some insects fly south for the winter and others spend the cold months under ground, under water, in unused buildings, or as eggs or pupae.

A First Look At Whales

By Millicent E. Selsam

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How Animals Sleep

By Millicent E. Selsam

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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.