G. Bruce Boyer Books

Elegance A Guide to Quality in Menswear

By G. Bruce Boyer

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Eminently Suitable

By G. Bruce Boyer

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Elegance

By G. Bruce Boyer

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True style

By G. Bruce Boyer

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"From choosing the right pair of eyeglasses to properly coordinating a tie, shirt, and pocket square, getting dressed is an art to be mastered. Yet how many of us just throw on, well, whatever in t...

Ivy style

By Patricia Mears

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"An in-depth study of Ivy style will be articulated this book, which will include essays by Patricia Mears, Dr. Peter McNeil, Dr. Christopher Breward, and Dr. Masafumi Monden. Dr. McNeil will analy...

Elegance in the Age of Crisis

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True Style

By G. Bruce Boyer

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Gary Cooper

By Maria Cooper Janis, Ruth Claude Ansel, G. Bruce Boyer, Ralph Lauren

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Fred Astaire Style Memoire

By G. Bruce Boyer

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Rebel Style

By G. Bruce Boyer

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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.