Jen Calonita Books

Secrets of my Hollywood life.

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Life is good for Hollywood princess Kaitlin Burke, ready to star in a movie by her favorite director, but an old love and a scheming new publicist complicate her already hectic existence.

"Spoiled, yet lovable fifteen-year-old Harper McCallister is sent to sleepaway camp where she is an outcast at first but eventually finds a way to make her mark, gaining new perspectives on friends...

Winter White Belles

By Jen Calonita

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Family Affairs

By Jen Calonita

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Sixteen-year-old actress Kaitlin Burke reluctantly joins forces with castmate Sky when a scheming new actress tries to steal the show.

Secrets of My Hollywood Life: On Location

By Jen Calonita

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On Location

By Jen Calonita

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Life is good for Hollywood princess Kaitlin Burke, ready to star in a movie by her favorite director, but an old love and a scheming new publicist complicate her already hectic existence.

Secrets of My Hollywood Life

By Jen Calonita

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Secrets of My Hollywood Life: Number 1 in series

By Jen Calonita

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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.