Allan C. Carlson Books

The institution of marriage has become perilously weak in America. Changes in the law over the past three decades, such as the spread of no-fault divorce and broad acquiescence to cultures of divor...

The Natural Family

By Allan C. Carlson

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"Sixty years ago, the UN declared the family to be the "natural and fundamental" unit of society. Today, many people are unsure as to what the word "family" even means. In response to this confusio...

Fractured Generations

By Allan C. Carlson

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"Fifty years ago, the phrase "family policy" was rarely heard in America. Individual states maintained laws governing marriage, divorce, education, inheritance, and child protection, which regulate...

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.