Lewis Carroll Books

On Corpulence

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Fat seemed to be getting fatter under Queen Victoria: Tweedledum and Tweedledee; Joe "the fat boy" in The Pickwick Papers; even the first known report of childhood obesity in 1859. But for the shor...

Hints on Etiqette

By Lewis Carroll

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A book of dining, flirting, dancing and smoking, celebrating the 175th anniversary of The London Library.With nineteenth-century fashions constantly changing, but the importance of the baffling soc...

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.