Margaret Hillert Books

The little red hen finds none of her lazy friends willing to help her plant, harvest, or grind wheat into flour, but all are eager to eat the bread she makes from it.

Run to the rainbow

By Margaret Hillert

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Three children, searching for the rainbow, see many colorful objects.

The little cookie

By Margaret Hillert

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Retells in preprimer vocabulary the tale of the run-away gingerbread boy who eludes the hungry grasp of everyone until he meets a fox.

Four good friends

By Margaret Hillert

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A retelling of the Grimm fairy tale in which four animal friends, in search of a place to live, scare robbers from a house in the forest and decide to live together.

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.