Eric W Johnson Books

The Family Book About Sexuality

By Mary S. Calderone

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Language for Daily Use Gold Explorer Edition

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Love and sex in plain language

By Eric Warner Johnson

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Love and sex in plain language

By Eric W. Johnson

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Describes development of sexual characteristics in boys and girls, explains the physiology of intercourse, pregnancy, and birth, and discusses homosexuality, masturbation, contraception, and VD.

The Family Book About Sexuality

By Eric W. Johnson, Mary Steichen Calderone, Mary S. Calderone

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Designed to strengthen parent-child communication, this comprehensive, insightful guide builds a positive understanding of sexuality and clarifies many sex-related topics, including marriage, sex e...

V.D.

By Eric W. Johnson

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Outlines the present venereal disease crisis in the United States, the facts about syphilis and gonorrhea, and what could be done to help solve this national health problem.

Life into Language

By Johnson

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Love and Sex in Plain Language

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How to achieve competence in English

By Eric W. Johnson

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How to Achieve Competence in English

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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.