Lewisohn, Mark Books

The Beatles Day By Day

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Offers a chronological account of the Beatles' lives and careers, from their earliest days to the present, as both a group and as solo artists

The Beatles Live: The Ultimate Reference Book

By Mark Lewisohn, Lewisohn, Mark

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Describes every Beatles live performance between 1957 and 1966, lists their repertoire during each period, and includes brief newspaper accounts of selected concerts

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.