Paul B. Baltes Books

Various theoretical models in psychology and the social sciences have emphasized the social foundation of the mind and the role that social interactions play in cognitive functioning and its develo...

The Berlin Aging Study

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Lifespan development and the brain

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"This book focuses on the developmental analysis of brain-culture-environment dynamics and argues that this dynamic is interactive and reciprocal; brain and culture co-determine each other. As a wh...

Life-span developmental psychology

By Paul B. Baltes

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Life Span Development and Behavior

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Theoretical Approaches to Lifespan Development

By Paul B. Baltes

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Life Span Devevelopment and Behavior

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Life-span developmental psychology

By Paul B. Baltes

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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.