Irving E. Sigel Books

Cognitive development from childhood to adolescence

By Irving E. Sigel

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The American way

By Nancy W. Bauer

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A textbook describing the development of the American people.

Handbook of child psychology

By Richard M. Lerner, Irving E. Sigel, William Damon, K. Ann Renninger

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Part of the authoritative four-volume reference that spans the entire field of child development and has set the standard against which all other scholarly references are compared. Updated and revi...

Handbook of child psychology

By Richard M. Lerner, Irving E. Sigel, William Damon, K. Ann Renninger

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Handbook of Child Psychology Vol. 4

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Parental Belief Systems

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Advances in Applied Developmental Psychology Volume 1

By Irving E. Sigel

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Parental Belief Systems

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Methods of Family Research

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Methods of Family Research

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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.