Preben Sejer Kristensen Books

A family in France

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Text and photographs present the home, work, school, recreations, and day-to-day activities of the Michel family who live in a small town in the Champagne region of France. Also includes general fa...

A family in Mexico

By Peter Otto Jacobsen

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Text and photographs present the life of a silversmith's family which lives in Mexico City.

A family in India

By Peter Otto Jacobsen

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Text and photographs present the life of a family in the village of Mehendwara, India.

A family in Holland

By Peter Otto Jacobsen

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Text and photographs introduce the reader to a Dutch family that is in the tulip-growing business.

A family in Japan

By Peter Otto Jacobsen

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Text and photographs present the home, work, school, recreations, and day-to-day activities of the Fujii family who live in the town of Okazaki, headquarters of the Mitsubishi car factory. Also inc...

A family in Ireland

By Peter Otto Jacobsen

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Text and photographs present the home, work, school, recreations, and day-to-day activities of the Corcoran family who live in the small village of Ballyduff in southeastern Ireland. Also includes...

A family in West Africa

By Peter Otto Jacobsen

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Text and photographs present the home, work, and day-to-day activities of the chief of a village in Senegal and his large family.

A family in Switzerland

By Peter Otto Jacobsen

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Text and photographs present the home life and day-to-day activities of a family who lives in the cheese-making region of Emmental, Switzerland.

We live in the Netherlands

By Preben Sejer Kristensen

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Presents various aspects of life in the Netherlands through interviews with twenty-six people representing different age groups, occupations, and regions. Includes a section of brief facts about th...

We live in South Africa

By Preben Sejer Kristensen

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Presents various aspects of life in South Africa through interviews with twenty-six people representing different ages, occupations, and regions. Also includes a section of brief facts about the co...

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.