Petra Mamula Books

The 5-Minute Pediatric Consult

By Esther K. Chung, Maria Mascarenhas MD, Peter M. Bingham MD, Esther K. Chung MD MPH, Louis M. Bell Jr. MD, Maria Mascarenhas, M. William Schwartz MD, David F. Friedman MD, Peter M Bingham, Louis M. Bell, Petra Mamula MD, Kathleen M. Loomes MD, Kathleen M. Loomes, M. William Schwartz, Peter M., M.D. Bingham, Louis M. Bell Jr., Petra Mamula, Ronn E. Tanel

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The thoroughly updated Fifth Edition of this best-selling reference provides immediate, practical advice on problems seen in infants, children, and adolescents. More than 460 chief complaints and d...

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.