Debbie Federici Books

L.O.S.T.

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Pulled from an ordinary life the summer before his senior year in high school, Bren is amazed to learn that the the girl who carried him through space and time is the queen of all witches, who beli...

Shadowqueen (L.O.S.T.)

By Susan Vaught, Debbie Tanner Federici, Debbie Federici

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Now the King of the Witches, Brenden tries to rescue Jazz while battling the evil Erlking, a fearsome shapeshifter, and his enchantress daughters.

Shadowqueen

By Susan Vaught, Debbie Tanner Federici

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L.o.s.t.

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Le signe du croissant

By Debbie Tanner Federici

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Sign of the crescent

By Debbie Tanner Federici

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Orphaned, seventeen-year-old Taryn, troubled by bizarre dreams, incapacitating vertigo from Ménière's disease, and strange sensations of power emanating from her crystal pendant, finds herself draw...

Witch Circle

By Susan Vaught, Debbie Federici

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249 p. ; 21 cm

Ombres

By Debbie Tanner Federici

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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.