Certified Series

A nonfiction book series exploring how destructive habits shape adult life and how to change them


Certified Loser

A memoir-driven self-development book.Completed manuscript. Currently seeking representation.Certified Loser is a nonfiction book examining fourteen destructive habits that quietly shape adult life. Through personal narrative, psychological introspection, and practical correction, the book explores how self-sabotage is formed, and how it can be dismantled through discipline, honesty, and sustained effort.


The Certified Series

The Certified Series is a four-book nonfiction project examining self-sabotage, discipline, and personal reconstruction across different stages of adult life. Each book can be read independently, while together they form a coherent narrative about responsibility, identity, and long-term change.

Titles in the series

  • Certified Loser

  • Certified Slave

  • Certified Late Bloomer

  • Certified Winner

Planned four-book series


About the Author

Christian Duke is a millennial author writing about self-sabotage, discipline, and personal reconstruction. Certified Loser is his debut book and the first volume in The Certified Series


Manuscript and proposal available upon request.

For representation inquiries, please contact

[email protected]


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