William B. Dinsmoor Books

Ancient Athenian building methods

By John McK Camp

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The Propylaia to the Athenian Akropolis

By William Bell Dinsmoor

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The Propylaia to the Athenian Akropolis

By Anastasia Norre Dinsmoor, William Bell Dinsmoor

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This is a documentation of the finished building of the Propylaia, the innovative and unique structure which serves as a monumental entrance to the Athenian Acropolis.

The Sanctuary of Athena at Sounion

By William B. Dinsmoor, Homer A. Thompson, Barbara A. Barletta

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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.