Robert Waldinger Books

A New York Times Bestseller What makes for a happy life, a fulfilling life? A good life? In their "captivating" ( The Wall Street Journal ) book, the directors of the Harvard Study of Adult Dev...

The Good Life: Lessons From The World'S Longest Scientific Study Of Happiness

By Robert Waldinger, Robert J. Waldinger, Marc Schulz

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A New York Times Bestseller What makes for a happy life, a fulfilling life? A good life? In their "captivating" ( The Wall Street Journal ) book, the directors of the Harvard Study of Adult Dev...

Buena Vida / The Good Life (Spanish Edition)

By Robert Waldinger, Marc Schulz

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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.