William Ryan Books

Irish Houses and Castles

By William Ryan, Desmond Guinness

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352 p. 33 cm

The power of words

By James Alexander Kapalo

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The research of the folklore genre of charms became extremely dynamic around the turn of the millennium. A number of academic disciplines allied themselves to explore manuscripts healing texts and...

Quan shi jie dou zai yong de Ying yu lu you hui hua 8 000

By William Ryan

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Easy Guide to Hydroponics System

By William Ryan

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Design of Electrical Machinery

By William Ryan

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The purpose of this volume is to define alternating-current generators, synchronous motors, and rotary converters. It contains what the author believes will be of most service to the student who is...

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.