Erik Blegvad Books

Miss Bianca in the Orient

By Margery Sharp

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The fragile flag

By Jane Langton

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A nine-year-old girl leads a march of children from Massachusetts to Washington, in protest against the President's new missile which is capable of destroying the earth.

May I Visit?

By Erik Blegvad, Charlotte Zolotow

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Someone New

By Charlotte Zolotow

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A youngster discovers changes within himself as he matures and acquires new interests.

The Gammage Cup

By Carol Kendall

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The Gammage Cup: A Novel of the Minnipins

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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.