John Brandt Books

Where's Holmes

By Scott G. Gibson, John Brandt, TC Phillips, Lana Lea, Greg Chapman, Bryce Euston, Karen J Carlisle, B.M. Whitton, Paulene Turner

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Comets: Readings From Scientific American

By Scientific American Inc, John C. Brandt, John Brandt

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Giotto's Portrait Of Halley's Comet / Olson -- Scientific American Reports On The 1910 Apparition Of Halley's Comet -- Comet / Whipple -- Review Of The Comets And Their Origins By R.a. Lyttleton /...

Hunters of Man

By John Brandt, John H. Brandt, J. Brandt

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Shadows in an African Twilight

By John Brandt, Kevin Thomas

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Helen Miller : an English Girl's Journey

By John Brandt

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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.