Logan John A. Mrs. Books

The part taken by women in American history.

By Logan John A. Mrs.

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Reminiscences of the Civil War and Reconstruction.

By Logan John A. Mrs.

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Reminiscences of a soldier's wife

By Logan John A. Mrs.

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Married to John A. Logan for thirty-one years, Mary Logan shared in her distinguished husband's career as a prosecutor in southern Illinois, as a Civil War general, and as a senator from Illinois....

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.