Explore books by Adam Caplan, including the forthcoming Mathatar adventure series and the gripping true story Not A Good Witness
Stories about adventure, courage, ideas, the value of maths and the strange machinery of reality.
From a guide to removing trauma from your life to selling ethically and a time travelling, maths-busting story about friendship and family, there’s a book for the whole family!
Cheesy advert aside, the books are very different, however, all are underpinned by a desire for personal improvement and growth.
Mathatar - Book One
Current status - in submission stage
When fourteen-year-old Maya discovers that reality is beginning to distort through mathematical slips, she is drawn into a portal hidden in her grandfather’s workshop and thrown into ancient Ur.
There, alongside Aya, Fletcher, Grandad and Fella the Labrador, Maya must confront the Null — faceless forces that are stealing mathematics from history.
If numbers, patterns, proof and structure disappear, reality itself may not survive.
Upper middle grade / lower YA adventure
Time-slip fantasy
Historical adventure
STEM-inspired fiction
For readers aged 11–14 and curious adults
The wider Mathatar world and series
Mathatar is planned as a series exploring the moments where mathematical understanding changed human history. There are plans for other subjects in the future to be covered.
Each book will combine adventure, emotional stakes, historical settings and a core mathematical idea — not as a lesson, but as part of the story’s engine.
The long-term vision is a series that helps readers feel that maths belongs to them: not as a test, but as a human story full of mystery, courage and discovery.
Mathatar will be offering educational support materials and events to complement the series.
Not A Good Witness
Current status - in submission stage
Not a Good Witness is a powerful memoir by Larita Daniels with Adam Caplan, telling the true story of love, deception, financial abuse, and institutional betrayal. What began as a seemingly genuine relationship became a devastating pattern of lies, manipulation, and loss — one that Lori later discovered had affected other women too.
But this is not only a story about a serial deceiver. It is also the story of what happened when Lori, a Deaf woman, tried to report it and was failed by the very system meant to protect her.
Grounded in lived experience, witness testimony, documentary evidence, and an upheld complaint of disability discrimination, Not a Good Witness is a gripping and deeply human account of trust, survival, and the fight to be heard.
Other writing
Alongside Mathatar, Adam has written two previous books, and writes articles and reflections on storytelling, education, confidence, creativity, communication, resilience and the way powerful ideas shape how we see the world.
His previous books include Cellular Attitude (2nd Edition), a personal guide to creating a happier life by understanding and processing traumatic events in your life and The Anti-Sales Manifesto, a psychology based approach to ethical sales that focusses on helping customers buy what they want.
