Peter B. C. Williams Books

Obentoo Level 1 Student Book

By Etc, Peter Williams, Kyoko Kusumoto, Sue Xouris, Dr. Peter Williams, Peter B. C. Williams

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Obentoo is a new course for students who are learning Japanese which provides an enjoyable and challenging experience. Obentoo brings together Japanese culture and language learning in a lively an...

Obentoo Level 1 Teacher Resource File

By Peter Williams, Kyoko Kusumoto, Sue Xouris, Peter B. C. Williams

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Obentoo is a new course for students who are learning Japanese which provides an enjoyable and challenging experience. Obentoo brings together Japanese culture and language learning in a lively an...

Obentoo (V. 1) (English And Japanese Edition)

By Peter Williams, Kyoko Kusumoto, Sue Xouris, Peter B. C. Williams

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Obentoo is a new course for students who are learning Japanese which provides an enjoyable and challenging experience. Obentoo brings together Japanese culture and language learning in a lively an...

Obentoo Level 1 Teacher Notes

By Peter Williams, Kyoko Kusumoto, Sue Xouris, Peter B. C. Williams

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Obentoo is a new course for students who are learning Japanese which provides an enjoyable and challenging experience. Obentoo brings together Japanese culture and language learning in a lively an...

Obentoo Level 1 Workbook

By Peter Williams, Kyoko Kusumoto, Sue Xouris, Peter B. C. Williams

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Obentoo is a new course for students who are learning Japanese which provides an enjoyable and challenging experience. Obentoo brings together Japanese culture and language learning in a lively an...

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.