Robie H. Harris Books

"In their previous landmark volumes . . . Harris and Emberley established themselves as the purveyors of reader-friendly, straightforward information on human sexuality for readers as young as seve...

What's in There?

By Robie H. Harris

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Continuing her series for preschoolers, New York Times best-selling author Robie H. Harris follows the stages of pregnancy and childbirth in a matter-of-fact and comfortable way.Gus and Nellie have...

Who's In My Family?

By Robie H. Harris Illustrated By Nadine Bernard Westcott

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Trusted New York Times best-selling author Robie H. Harris continues her series for preschoolers with a look at the many kinds of families that make up our world.Join Nellie and Gus and their famil...

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.