John Hamberger Books

First dictionary

By Christopher G. Morris, Angela Adams, William Darrach Halsey, John Hamberger, Dora Leder

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An alphabetical list of 1500 common words with meanings, explanatory sentences, and illustrations for those words considered "conceptual."

Magic World of Words

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An alphabetical list of 1500 common words with meanings, explanatory sentences, and illustrations for those words considered "conceptual."

The MACMILLAN BOOK OF DINOSAURS & OTHER PREHISTORIC CREATURES

By Mary Elting

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Traces the history and development of dinosaurs and other prehistoric animals and discusses how scientists have pieced together information about these animals by studying their fossilized remains.

This is the day.

By John Hamberger

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One special February day all the forest animals go to the groundhog's burrow to see if he will come out.

This Is the Day.

By John Hamberger

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Gorilla mysteries

By Mary Elting

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Discusses the habits of gorillas, giant apes of frightening appearance but gentle behavior, long misunderstood by their human close relatives.

Vanishing wings

By Griffing Bancroft

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Describes the physical characteristics and habits of an eagle, osprey, and a falcon and discusses the effects of environmental pollutants on their survival.

Animals of the sea

By Millicent E. Selsam

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A Sleepless Day

By John Hamberger

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Sea Monsters of Long Ago

By John Hamberger, 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.