Carol E. Ayer Books

The Princess And The Poison (Storybook Park Mysteries) (Volume 1)

By AYER., Carol E. Ayer, Carol E., Ayer, Carol E.

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From debut author Carol E. Ayer comes an enchanting new series...Ashling Cleary, the owner and manager of a storybook theme park in Northern California, isn't exactly leading the fairy tale life sh...

Peppermint Cream Die

By Carol Ayer, Carol E. Ayer

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When Home Bakery Owner Kayla Jeffries Discovers Her Elderly Friend Has Been Strangled, She Draws Upon Her Strengths As An Hsp (highly Sensitive Person) To Help Solve The Murder And Restore Peace To...

Sourdough Dead

By Carol Ayer, Carol E. Ayer

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Sourdough Dead

By Carol E. Ayer

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Stabbed In The Tart

By Carol E. Ayer

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Home bakery owner and Highly Sensitive Person (HSP) Kayla Jeffries has been hired for the Gourmet and Stay Valentine's Weekend at the historic Countryside Inn in Los Robles, CA. When one of her fel...

Stabbed In The Tart

By Carol E. Ayer

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Probable Claus

By Carol E. Ayer

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The Princess And The Poison

By Carol E. Ayer

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From Debut Author Carol E. Ayer Comes An Enchanting New Series... Ashling Cleary, The Owner And Manager Of A Storybook Theme Park In Northern California, Isn't Exactly Leading The Fairy Tale Life S...

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.