J

John McMahon

Bestselling Author • 2 Series • 5 Books

2
Series
5
Books
2
Active

🎯 Where Should I Start?

Best Starting Point
Publication Order of Detective P. T. Marsh Books
Start with: The Good Detective (2019)
Popular Choice
Publication Order of Head Cases (PAR Unit) Books
Start with: Head Cases (2025)

About John McMahon

John McMahon is a popular American writer of mystery, suspense, detective fiction, and thriller stories. He is particularly famous for writing the Detective P.T. Marsh novel series. Before becoming a writer, McMahon used to work as a creative director at an advertisement agency. In this role, he has written a spot for Superbowl for Alfa Romeo. Also, McMahon’s work in creative direction for Fiat has won him a Gold Clio. Author McMahon has obtained a degree in Creative Writing from The University of Arizona. After successfully writing and publishing two P.T. Marsh books, he is currently at work on his third novel. McMahon is happily married and resides in Southern California. His family comprises of his loving wife, kids, and a couple of rescue animals. Rising to prominence with the Publication Order of Detective P. T. Marsh Books series, John McMahon 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 John McMahon

Publication Order of Detective P. T. Marsh Books
3 books 2019–2021
1

The Good Detective

The investigation intensifies in The Good Detective, as this installment of the Publication Order of Detective P. T. Marsh Books series takes readers deeper into the criminal underworld of John McMahon's creation.

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2019
2

The Evil Men Do

Readers dive deeper into the world of Publication Order of Detective P. T. Marsh Books with The Evil Men Do, another outstanding contribution from John McMahon.

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2020
3

A Good Kill

A gripping mystery unfolds in A Good Kill as the investigation takes deadly new turns. This installment of the Publication Order of Detective P. T. Marsh Books series showcases John McMahon's mastery of suspense.

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2021
Publication Order of Head Cases (PAR Unit) Books
2 books 2025–2026
1

Head Cases

Readers dive deeper into the world of Publication Order of Head Cases (PAR Unit) Books with Head Cases, another outstanding contribution from John McMahon.

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2025
2

Inside Man

Readers dive deeper into the world of Publication Order of Head Cases (PAR Unit) Books with Inside Man, another outstanding contribution from John McMahon.

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2026

? Frequently Asked Questions

Who is John McMahon?

John McMahon is a bestselling author known for 2 book series containing over 5 books. Popular series include Publication Order of Detective P. T. Marsh Books, Publication Order of Head Cases (PAR Unit) Books. Their work spans multiple genres and has captivated millions of readers worldwide.

What is the best John McMahon series to start with?

For readers new to John McMahon's work, the Publication Order of Detective P. T. Marsh Books series is the ideal entry point. It showcases the author's signature style and contains 3 books. Begin with The Good Detective to start from the very beginning.

How many books has John McMahon written?

John McMahon has written over 5 books across 2 series. This prolific output covers multiple genres, making them one of the most versatile authors in contemporary fiction.

Should I read John McMahon books in order?

Yes, reading John McMahon'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 John McMahon write in?

John McMahon writes primarily in fiction. With 2 series across 5 books, the author has explored a wide range of themes and storytelling approaches throughout their career.

Are John McMahon's books standalone or must they be read as a series?

Most of John McMahon'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 John McMahon's most popular book?

Based on reader reviews and sales data, John McMahon's most celebrated works come from the Publication Order of Detective P. T. Marsh Books series. The first book, The Good Detective, is widely considered the ideal starting point and consistently receives outstanding reader ratings.