Perri Klass Books

Pulse Voices from the Heart of Medicine More Voices

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Glimmer Train Stories 98

By Theodora Ziolkowski, Linda B. Swanson Davies, David Mizner, Ezekiel N. Finkelstein, Miranda July, Anthony DeCasper, Gabe Herron, Lara Markstein, Perri Klass, Jane Zwinger, Zain Saeed, S.P. MacIntyre, Susan Burmeister Brown, Stefanie Freele, Jeffrey Rotter, Caleb Leisure, Taiyaba Husain

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Second Impact

By Perri Klass, David Klass

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The Best Medicine: How Science And Public Health Gave Children A Future

By Perri Klass

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A Good Time To Be Born: How Science And Public Health Gave Children A Future

By Perri Klass

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The fight against child mortality that transformed parenting, doctoring, and the way we live. Only one hundred years ago, in even the world's wealthiest nations, children died in great numbers#8212...

Good Time to Be Born

By Perri Klass

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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.