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Diana Cosby

Bestselling Author • 4 Series • 15 Books

4
Series
15
Books
4
Active

🎯 Where Should I Start?

Best Starting Point
Publication Order of Forbidden Books
Start with: Forbidden Legacy (2016)
Popular Choice
Publication Order of MacGruder Brothers Books
Start with: His Captive (2007)
Popular Choice
Publication Order of Oath Trilogy Books
Start with: An Oath Taken (2014)

About Diana Cosby

Diana Cosby is a renowned American writer of historical romance and paranormal romance stories. She is well known for writing the award-winning and internationally bestselling series of romantic suspense novels, the MacGruder Brothers series. Additionally, Cosby has penned the Oath Trilogy series and the Forbidden series, both of which are also widely successful. She has also contributed to the omnibus collection called Born to Bite in collaboration with authors Erica Ridley and Hannah Howell. Cosby’s MacGruders novels are based on Scottish medieval romance and have won several prestigious awards. They have been translated into five foreign languages and published across the globe. Author Cosby is a retired Navy Officer and has years of experience in that field. Rising to prominence with the Publication Order of Forbidden Books series, Diana Cosby has since expanded their repertoire to include numerous successful works across various genres. Their writing style, characterized by compelling narratives and memorable characters, has earned them a dedicated global readership with millions of fans worldwide.

📚 All Book Series by Diana Cosby

Publication Order of Forbidden Books
5 books 2016–2020
1

Forbidden Legacy

Readers dive deeper into the world of Publication Order of Forbidden Books with Forbidden Legacy, another outstanding contribution from Diana Cosby.

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2016
2

Forbidden Knight

Forbidden Knight continues the Publication Order of Forbidden Books story arc with Diana Cosby's signature blend of plot twists and unforgettable characters.

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2017
3

Forbidden Vow

Forbidden Vow continues the Publication Order of Forbidden Books story arc with Diana Cosby's signature blend of plot twists and unforgettable characters.

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2018
4

Forbidden Alliance

Readers dive deeper into the world of Publication Order of Forbidden Books with Forbidden Alliance, another outstanding contribution from Diana Cosby.

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2019
5

Forbidden Realm

Readers dive deeper into the world of Publication Order of Forbidden Books with Forbidden Realm, another outstanding contribution from Diana Cosby.

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2020
Publication Order of MacGruder Brothers Books
6 books 2007–2013
1

His Captive

His Captive continues the Publication Order of MacGruder Brothers Books story arc with Diana Cosby's signature blend of plot twists and unforgettable characters.

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2007
2

His Woman

Readers dive deeper into the world of Publication Order of MacGruder Brothers Books with His Woman, another outstanding contribution from Diana Cosby.

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2008
3

His Conquest

Epic adventure awaits in His Conquest, a landmark entry in the Publication Order of MacGruder Brothers Books series that raises the stakes across the realm Diana Cosby has built.

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2010
4

His Destiny

Readers dive deeper into the world of Publication Order of MacGruder Brothers Books with His Destiny, another outstanding contribution from Diana Cosby.

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2011
5

His Seduction

Readers dive deeper into the world of Publication Order of MacGruder Brothers Books with His Seduction, another outstanding contribution from Diana Cosby.

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2013
6

His Enchantment

Readers dive deeper into the world of Publication Order of MacGruder Brothers Books with His Enchantment, another outstanding contribution from Diana Cosby.

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2013
Publication Order of Oath Trilogy Books
3 books 2014–2015
1

An Oath Taken

An Oath Taken continues the Publication Order of Oath Trilogy Books story arc with Diana Cosby's signature blend of plot twists and unforgettable characters.

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2014
2

An Oath Broken

An Oath Broken continues the Publication Order of Oath Trilogy Books story arc with Diana Cosby's signature blend of plot twists and unforgettable characters.

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2015
3

An Oath Sworn

An Oath Sworn is an essential installment in the Publication Order of Oath Trilogy Books series, delivering the tension and character depth that fans of Diana Cosby have come to expect.

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2015
Publication Order of Anthologies
1 books 2012–2012
1

Born To Bite

Readers dive deeper into the world of Publication Order of Anthologies with Born To Bite, another outstanding contribution from Diana Cosby.

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2012

? Frequently Asked Questions

Who is Diana Cosby?

Diana Cosby is a bestselling author known for 4 book series containing over 15 books. Popular series include Publication Order of Forbidden Books, Publication Order of MacGruder Brothers Books, Publication Order of Oath Trilogy Books. Their work spans multiple genres and has captivated millions of readers worldwide.

What is the best Diana Cosby series to start with?

For readers new to Diana Cosby's work, the Publication Order of Forbidden Books series is the ideal entry point. It showcases the author's signature style and contains 5 books. Begin with Forbidden Legacy to start from the very beginning.

How many books has Diana Cosby written?

Diana Cosby has written over 15 books across 4 series. This prolific output covers multiple genres, making them one of the most versatile authors in contemporary fiction.

Should I read Diana Cosby books in order?

Yes, reading Diana Cosby's series in publication order is strongly recommended. Most series feature evolving character arcs, ongoing story threads, and references to earlier events that are most rewarding when experienced in sequence. Our complete reading order guides are listed above.

What genre does Diana Cosby write in?

Diana Cosby writes primarily in fiction. With 4 series across 15 books, the author has explored a wide range of themes and storytelling approaches throughout their career.

Are Diana Cosby's books standalone or must they be read as a series?

Most of Diana Cosby's books are part of ongoing series and deliver the most satisfying experience when read in order. However, several standalone novels and short story collections provide excellent entry points without requiring prior knowledge of other series.

What is Diana Cosby's most popular book?

Based on reader reviews and sales data, Diana Cosby's most celebrated works come from the Publication Order of Forbidden Books series. The first book, Forbidden Legacy, is widely considered the ideal starting point and consistently receives outstanding reader ratings.