Hammserstein Books

Surrey with the Fringe on Top The

By Oscar Hammerstein, Hammserstein

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A nighttime ride in the surrey with the fringe on top is a grand and beautiful experience.

In My Own Little Corner

By Oscar Hammerstein, Hammserstein

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While sitting in a corner, a little girl imagines that she is a Norwegian princess, a prima donna in Milan, a dancing mermaid, and more.

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.