David Lloyd Books

Ultradian Rhythms in Life Processes

By David Lloyd

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Flow Cytometry in Microbiology

By David Lloyd

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Bread and cheese

By Lloyd David

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Eric's request for bread and cheese begins a chain of like requests as each person asked in turn asks someone else.

Hat

By Lloyd David

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Johnny Martin, being the only person without headgear in a family of pink, brown, straw, flat, knitted, and flowery hats, finally gets one of his own.

Duck Rogers

By Clive Scruton

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BREAKFAST

By David Lloyd, Lloyd David

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One morning during breakfast baby dinosaur Little So-and-So wanders away from his mother and into trouble.

EARLY MORNING

By David Lloyd, Lloyd David

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Little So-and-So hatches out of an egg and plays in the sun with the other dinosaurs.

SILLY GAMES

By David Lloyd, Lloyd David

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A little dinosaur enjoys playing with his mother.

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.