Patrick Doyle Books

Harry Potter Musical Magic The First Five Years

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Harry Potter Magical Music

By John Williams, Patrick Doyle, Alfred Publishing Staff, Nicholas Hooper, Carol Matz

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for The First Time Ever, Musical Selections From The First Five Harry Potter Movies Are Available In One Jam-packed Collection. Late Elementary To Early Intermediate-level Pianists Will Love Playin...

Harry Potter Magical Music From The First Five Years At Hogwarts Easy Piano

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Harry Potter - Sheet Music From The Complete Film Series

By John Williams, Patrick Doyle, Nicholas Hooper, Alexandre Desplat

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With the Harry Potter film series now complete, Alfred Music and Warner Bros. Entertainment are proud to present musical selections from the eight epic films together in one piano sheet music colle...

Flatt

By Patrick Doyle

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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.