Gilda Berger Books

Explains the cycle of evaporation, condensation, and precipitation that provides fresh water to the earth and describes how this supply is brought to people's homes.

Where are the stars during the day?

By Melvin Berger

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In simple text, presents information about Earth, the planets, stars, and the constellations that make up the universe.

The Whole World in Your Hands

By Melvin Berger, Gilda Berger

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Explains what maps are and how to use them, discusses map symbols and their meanings, and includes maps of a house, community, city, state, country, and the world.

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.