Heidi M. Feldman Books

Developmental Behavioral Pediatrics

By Jimenez Manuel, Ellen Roy Elias, Terry Stancin, Nathan J. Blum, Heidi M. Feldman

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Developmental-Behavioral Pediatrics

By William B. Carey, Carey, Heidi M. Feldman, Allen C. Crocker, Coleman, William P., II, Ellen Roy Elias, William B. Carey; Allen C. Crocker; Ellen Roy Elias; Heidi M. Feldman; William P. Coleman

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The fourth edition of Developmental-Behavioral Pediatrics—the pioneering, original text— emphasizes children’s assets and liabilities, not just categorical labels. It includes fresh perspectives fr...

Redesigning Health Care for Children with Disabilities

By Heidi M. Feldman

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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.