Patricia Marr Cunningham Books

Sequel to Making big words. An innovative, developmental program that combines phonics and spelling. The lessons encourage hands-on exploration of words, letter-sound relationships, and letter pat...

Making more words

By Patricia Marr Cunningham

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Sequel to Making words. An innovative, developmental approach to teaching phonics and spelling, containing fast-paced, hands-on activities. The lessons encourage children to explore words, letter-s...

Writing the Four-blocks Way

By Sharon Arthur Moore, James W. Cunningham, Dorothy P. Hall, Patricia Marr Cunningham

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Phonics They Use: Words for Reading and Writing

By Patricia Marr Cunningham

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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.