Charlotte Herman Books

World War II affects Shirley Frances Cohen and her buddy Morton, Manny who joins the army, their parents, a German immigrant suspected of being a spy, and the other people in their Chicago neighbor...

Max Malone makes a million

By Charlotte Herman

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Max Malone, along with his best friend Gordy, is continually frustrated in his attempts to get rich, while his neighbor, little Austin Healy, makes money at every turn.

You've come a long way, Sybil Macintosh

By Charlotte Herman

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Instructions for proper manners for the telephone, the dinner table, parties, introductions, thank-you letters, and other social situations.

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.