John S. M. Chen Books

Architecture in Pen and Ink

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Architecture in Pen and Ink is a magnificently illustrated compendium of drawings by world-renowned masters of architecture and design. Filled not only with one-of-a-kind illustrations, but also wi...

Architectural Perspective Grids: An Easy Method of Three Dimensional Design and Perspective Construction

By John S. M. Chen, William T. Cooper

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"This book is sure to be a godsend for all architects, interior designers, and graphic designers who have ever faced the challenge of visualizing their designs and presentations in three dimensions...

Architecture in Color Drawings

By John S. M. Chen

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Architecture in Color Drawings is a state-of-the-art "how-to" book containing invaluable examples, techniques, and shortcuts that cut working time in half! It is also a beautiful color portfolio of...

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.