Patricia Simpson Books

Rae Lambers is over the moon when she inherits half a house from her mentor, Thomas Gregory. The property is a gorgeous Victorian on an island in San Francisco Bay. But the house comes with a snag....

The Dark Horse Forbidden Tarot

By Patricia Simpson

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Marguerite Bourgeoys and Montreal, 1640-1665

By Patricia Simpson

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St Marguerite Bourgeoys (1620-1700), canonized in 1982, is a key figure in Canadian and religious history as founder of the first school in Montreal and the Congregation de Notre-Dame de Montreal,...

Marguerite Bourgeoys et Montreal, 1640-1665

By Patricia Simpson

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Marguerite Bourgeoys And the Congregation of Notre Dame 1665 1700 Mcgill Queen s Studies in the History of Religion

By Patricia Simpson

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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.