Ronnie Douglas Books

Undaunted: Knights in Black Leather

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"Aubrey Evans has always had a plan and her admittance to her dream school, Reed College, is the next step in her carefully constructed world. But when her father is indicted for embezzling and her...

Undaunted

By Ronnie Douglas

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Unruly

By Ronnie Douglas, Melissa Marr

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Unruly

By Ronnie Douglas, Melissa Marr

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Unruly

By Ronnie Douglas, Melissa Marr

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Sugar

By Ronnie Douglas, Melissa Marr

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Unfiltered and Unlawful

By Payge Galvin, Ronnie Douglas

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Undaunted: Knights in Black Leather

By Ronnie Douglas, Melissa Marr

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Following in the tradition of Kristen Ashley, Joanna Wilde, and Jay Crownover, this first novel in a sexy, dark New Adult series tells the thrilling story of a young woman who finds herself drawn t...

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.