Anna Vallye Books

Leger 1910 1930

By Fernand Leger, Anna Vallye

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Fernand Lger And The Modern City

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Candide No. 7

By Axel Sowa, Susanne Schindler, Anna Vallye

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Urban Renewal and Highway Construction in New London, 1941-1975

By Anna Vallye

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After WWII, city governments across the country planned many large-scale redevelopment projects. These building campaigns created new highways and parks, housing and schools; but they also destroye...

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.