Caroline Uff Books

Lulu's busy day

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Lulu enjoys many activities during the day, including drawing a picture, visiting the park, and reading a bedtime story.

Happy birthday, Lulu!

By Caroline Uff

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On her birthday, a young girl receives hugs, cards, telephone calls, presents, and a party.

Hello, Lulu Caroline Uff.

By Caroline Uff

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Simple text and illustrations introduce Lulu, her pets, and her family.

Lulu's busy day

By Caroline Uff

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Lulu enjoys drawing a picture, going to the park with her best friend, playing ball, bath time and curling up for a bedtime story with her teddy bear.

Lulu s holiday

By Caroline Uff

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A perfect first picture book all about holidays!.

Happy Christmas Lulu

By Caroline Uff

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Celebrate Christmas with Lulu!.

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.