Sheila Greenwald Books

Uncle Ralph's books about Rosy's two older sisters, a dancer and an equestrian, made them famous. Now it is untalented, 10-year-old Rosy's turn, and when Uncle Ralph gets out his camera determined...

Write on, Rosy!

By Sheila Greenwald

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When Rosy realizes she does not have a life-long ambition like her best friend Hermione, she decides to become an investigative reporter and investigates Headmistress Gormley with unexpected results.

Will the real Gertrude Hollings please stand up?

By Sheila Greenwald

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An eleven-year-old child with a learning disability spends several weeks with an overachieving cousin. They learn a lot about themselves and each other.

Rosy Cole discovers America!

By Sheila Greenwald

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Disappointed in the poor European immigrant ancestors she discovers during a class project to research family roots, Rosy cooks up a clan of royal relatives.

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.