Roberta Rich Books

De vroedvrouw van Venetie

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In het 16e eeuwse Venetië mag een joodse vroedvrouw geen christelijke vrouwen van dienst zijn, toch roept een christelijke edelman haar hulp in als zijn vrouw in het kraambed dreigt te overlijden.

The Midwife of Venice

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At midnight, the dogs, cats, and rats rule Venice. The Ponte di Ghetto Nuovo, the bridge that leads to the ghetto, trembles under the weight of sacks of rotting vegetables, rancid fat, and vermin....

1579: Hannah Levi, a Venetian exile, has set up a new life for herself as the best midwife in all of Constantinople, tending to the thousand women of the Sultan's lively and infamous harem. One nig...

Harem Midwife

By Roberta Rich

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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.