Bernard Catherine. Books

The British Empire and Queen Victoria in world history

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Explores the rule of Queen Victoria, the longest-reigning British monarch, who brought Great Britain to the height of its power, building a great colonial empire while enjoying industrial expansion...

E.B. White

By Bernard Catherine.

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Understanding to kill a mockingbird

By Bernard Catherine.

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An introduction to Harper Lee's famous novel, "To Kill a Mockingbird," discussing the author's life, the historical context of the novel, its plot, themes, characters, literary criticism, and perti...

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.